Merge from origin/emacs-26

28e0261890 * lisp/progmodes/cc-defs.el (c-version): Update to 5.33.1.
ac53084f9b Improve fix for Bug#29712
ffd4771560 * doc/lispref/sequences.texi (Sequence Functions): Improve...
f274cbd185 Avoid reordering of output in 'shr-insert-document'
7890864413 Improve documentation of 'invisible-p'
a1327bbc64 Remove one more check that Vframe_list is non-nil
63b6281fdd Fix off-by-one error in 'css--hex-color'
804b37ca63 Save and restore text-pixel height and width of frames (Bu...
777fe94661 Partially revert "Mention new strictness for &optional, &r...
ad17db7964 * lisp/vc/smerge-mode.el (smerge-refine): Respect font-loc...
5a7d0095a4 * lisp/vc/smerge-mode.el (smerge-refine): Replace obsolete...
e019c35df6 FOR_EACH_FRAME no longer assumes frame-list
d64b88da2f * src/font.c (Ffont_info): Doc fix.  (Bug#29682)
92b2604a7f Modernise message.el face spec syntax
b1efbe6564 Update message.el obsolete face aliases
2494c14e76 ; * lisp/comint.el (comint-terminfo-terminal): Add a :vers...
12ad276d15 Improve documentation of TERM environment variable
8ed529f0f3 Add option to configure comint TERM
889f07c352 Better support utf-8-with-signature and utf-8-hfs in XML/HTML
a2697fac0e * lisp/menu-bar.el (menu-bar-mode): Doc fix.
ffb50eace6 ; * etc/NEWS: Fix last change.
95606af8b0 Fix Bug#29712 in tramp-tests.el
9bf66c6bee Don't run FOR_EACH_FRAME when there's no frame left (Bug#2...
c2a88ec8e8 * lisp/textmodes/tex-mode.el: Ensure uncompiled file is lo...
b178870528 Remember password change for IMAP in Gnus (Bug#29692)
a21dac18bb Add %DUMBFW to the default GnuTLS priority strings
780407cff1 Small fixes prompted by make check-declare
541a60108d Fix some custom groups
e220d6e112 Fix fontification of first declaration within a C++ lambda...
aa66da220c * src/data.c (Fadd_variable_watcher): Doc fix.
f838210b01 Fix misfontification of C++ member initialization list aft...
232c6465ce Fix doc-string of Fbuffer_list
3f9aac68d7 Don't raise an extraneous frame (bug#29696)
e7b1111155 Mention new strictness for &optional, &rest in arglists (B...
4cb8696e47 Don't misfontify "foo ()" inside C++ initialization parent...
ce31e726ad Fixes for defcustoms, prompted by cus-test-opts
aacd1e14fc * lisp/net/newst-backend.el (newsticker--raw-url-list-defa...
7e2f4d3d41 * lisp/htmlfontify.el (hfy-which-etags): Fix it.
52d2a690f6 Add missing :version tags revealed by cusver-check
f5d0360234 Escape column-zero doc parens

# Conflicts:
#	etc/NEWS

6 files changed, 13 insertions, 23 deletions

diff --git a/lisp/vc/cvs-status.el b/lisp/vc/cvs-status.el
index 770791a3c09..3124a61422b 100644
--- a/lisp/vc/cvs-status.el
+++ b/lisp/vc/cvs-status.el
@@ -33,11 +33,6 @@
 
 ;;;
 
-(defgroup cvs-status nil
-  "Major mode for browsing `cvs status' output."
-  :group 'pcl-cvs
-  :prefix "cvs-status-")
-
 (easy-mmode-defmap cvs-status-mode-map
   '(("n"        . next-line)
     ("p"        . previous-line)
diff --git a/lisp/vc/diff-mode.el b/lisp/vc/diff-mode.el
index df9627abdf0..df33d10ed0c 100644
--- a/lisp/vc/diff-mode.el
+++ b/lisp/vc/diff-mode.el
@@ -2005,9 +2005,6 @@ For use in `add-log-current-defun-function'."
     (replace-match (cdr (assq (char-before) '((?+ . "-") (?> . "<"))))))
   )
 
-(declare-function smerge-refine-subst "smerge-mode"
-                  (beg1 end1 beg2 end2 props-c &optional preproc props-r props-a))
-
 (defun diff--forward-while-leading-char (char bound)
   "Move point until reaching a line not starting with CHAR.
 Return new point, if it was moved."
@@ -2049,13 +2046,13 @@ Return new point, if it was moved."
                           (diff--forward-while-leading-char ?+ end)
                           (progn (diff--forward-while-leading-char ?\\ end)
                                  (setq end-add (point))))
-                 (smerge-refine-subst beg-del beg-add beg-add end-add
+                 (smerge-refine-regions beg-del beg-add beg-add end-add
                                       nil 'diff-refine-preproc props-r props-a)))))
           (`context
            (let* ((middle (save-excursion (re-search-forward "^---")))
                   (other middle))
              (while (re-search-forward "^\\(?:!.*\n\\)+" middle t)
-               (smerge-refine-subst (match-beginning 0) (match-end 0)
+               (smerge-refine-regions (match-beginning 0) (match-end 0)
                                     (save-excursion
                                       (goto-char other)
                                       (re-search-forward "^\\(?:!.*\n\\)+" end)
@@ -2070,7 +2067,7 @@ Return new point, if it was moved."
            (let ((beg1 (1+ (point))))
              (when (re-search-forward "^---.*\n" end t)
                ;; It's a combined add&remove, so there's something to do.
-               (smerge-refine-subst beg1 (match-beginning 0)
+               (smerge-refine-regions beg1 (match-beginning 0)
                                     (match-end 0) end
                                     nil 'diff-refine-preproc props-r props-a)))))))))
 
diff --git a/lisp/vc/emerge.el b/lisp/vc/emerge.el
index 9c25ec43321..3f945bbb2bf 100644
--- a/lisp/vc/emerge.el
+++ b/lisp/vc/emerge.el
@@ -3171,11 +3171,9 @@ See also `auto-save-file-name-p'."
       (setq limit (1+ (match-end 0)))))
   s)
 
-;; Metacharacters that have to be protected from the shell when executing
-;; a diff/diff3 command.
 (defcustom emerge-metachars nil
-  "Obsolete, emerge now uses `shell-quote-argument'."
-  :type 'regexp
+  "No longer used.  Emerge now uses `shell-quote-argument'."
+  :type '(choice (const nil) regexp)
   :group 'emerge)
 (make-obsolete-variable 'emerge-metachars nil "26.1")
 
diff --git a/lisp/vc/smerge-mode.el b/lisp/vc/smerge-mode.el
index b988463de1e..ea1e0c726fd 100644
--- a/lisp/vc/smerge-mode.el
+++ b/lisp/vc/smerge-mode.el
@@ -919,7 +919,7 @@ Its behavior has mainly two restrictions:
   after the newline.
   This only matters if `smerge-refine-ignore-whitespace' is nil.
 - it needs to be unaffected by changes performed by the `preproc' argument
-  to `smerge-refine-subst'.
+  to `smerge-refine-regions'.
   This only matters if `smerge-refine-weight-hack' is nil.")
 
 (defvar smerge-refine-ignore-whitespace t
@@ -1188,15 +1188,15 @@ repeating the command will highlight other two parts."
       (put-text-property (match-beginning 0) (1+ (match-beginning 0))
                          'smerge-refine-part
                          (cons (buffer-chars-modified-tick) part)))
-    (smerge-refine-subst (match-beginning n1) (match-end n1)
+    (smerge-refine-regions (match-beginning n1) (match-end n1)
                          (match-beginning n2)  (match-end n2)
                          (if smerge-use-changed-face
-                             '((smerge . refine) (face . smerge-refined-change)))
+                             '((smerge . refine) (font-lock-face . smerge-refined-change)))
                          nil
                          (unless smerge-use-changed-face
-                           '((smerge . refine) (face . smerge-refined-removed)))
+                           '((smerge . refine) (font-lock-face . smerge-refined-removed)))
                          (unless smerge-use-changed-face
-                           '((smerge . refine) (face . smerge-refined-added))))))
+                           '((smerge . refine) (font-lock-face . smerge-refined-added))))))
 
 (defun smerge-swap ()
   "Swap the \"Upper\" and the \"Lower\" chunks.
diff --git a/lisp/vc/vc-hg.el b/lisp/vc/vc-hg.el
index 9e597a209a7..7962b70f20a 100644
--- a/lisp/vc/vc-hg.el
+++ b/lisp/vc/vc-hg.el
@@ -278,7 +278,7 @@ within the repository.
 
 If no list entry produces a useful revision, return `nil'."
   :type '(repeat (choice
-                  (const :tag "Active bookmark" 'bookmark)
+                  (const :tag "Active bookmark" builtin-active-bookmark)
                   (string :tag "Hg template")
                   (function :tag "Custom")))
   :version "26.1"
diff --git a/lisp/vc/vc-hooks.el b/lisp/vc/vc-hooks.el
index 99c8211ad5f..394b86c024b 100644
--- a/lisp/vc/vc-hooks.el
+++ b/lisp/vc/vc-hooks.el
@@ -34,9 +34,9 @@
 
 ;; Faces
 
-(defgroup vc-state-faces nil
+(defgroup vc-faces nil
   "Faces used in the mode line by the VC state indicator."
-  :group 'vc-faces
+  :group 'vc
   :group 'mode-line
   :version "25.1")