2019-12-05 regexp lint fixes

* lisp/org/org-agenda.el (org-agenda-filter):
Fix unescaped literal ‘+’ in regexp.  Reported by Mattias Engdegård in:
https://lists.gnu.org/r/emacs-devel/2019-12/msg00215.html
* lisp/org/org.el (org-clone-subtree-with-time-shift):
Fix a regexp typo that mishandled strings like ‘\1d’,
reported by the same emaikl.
* lisp/progmodes/verilog-mode.el (verilog-inject-inst):
Omit unnecessary ‘?’ in regexp.  Reported by Mattias Engdegård in:
https://lists.gnu.org/r/emacs-devel/2019-12/msg00217.html

3 files changed, 3 insertions, 3 deletions

diff --git a/lisp/org/org-agenda.el b/lisp/org/org-agenda.el
index 7cb5cca34cd..2404ca43dcb 100644
--- a/lisp/org/org-agenda.el
+++ b/lisp/org/org-agenda.el
@@ -7670,7 +7670,7 @@ the variable `org-agenda-auto-exclude-function'."
                        (if negate "Negative filter" "Filter")
                        " [+cat-tag<0:10-/regexp/]: ")
                       'org-agenda-filter-completion-function))
-           (keep (or (if (string-match "^+[-+]" f-string)
+           (keep (or (if (string-match "^\\+[+-]" f-string)
                          (progn (setq f-string (substring f-string 1)) t))
                      (equal strip-or-accumulate '(16))))
            (fc (if keep org-agenda-category-filter))
diff --git a/lisp/org/org.el b/lisp/org/org.el
index b37beeb96a6..f25c53caaff 100644
--- a/lisp/org/org.el
+++ b/lisp/org/org.el
@@ -7825,7 +7825,7 @@ with the original repeater."
                 "")))                   ;No time shift
          (doshift
           (and (org-string-nw-p shift)
-               (or (string-match "\\`[ \t]*\\([\\+\\-]?[0-9]+\\)\\([dwmy]\\)[ \t]*\\'"
+               (or (string-match "\\`[ \t]*\\([+-]?[0-9]+\\)\\([dwmy]\\)[ \t]*\\'"
                                  shift)
                    (user-error "Invalid shift specification %s" shift)))))
     (goto-char end-of-tree)
diff --git a/lisp/progmodes/verilog-mode.el b/lisp/progmodes/verilog-mode.el
index 6ec8d995c15..01914aade5a 100644
--- a/lisp/progmodes/verilog-mode.el
+++ b/lisp/progmodes/verilog-mode.el
@@ -10973,7 +10973,7 @@ shown) will make this into:
                 (t
                  ;; Delete identical interconnect
                  (let ((case-fold-search nil))  ; So we don't convert upper-to-lower, etc
-                   (while (verilog-re-search-forward-quick "\\.\\s *\\([a-zA-Z0-9`_$]+\\)?\\s *(\\s *\\1\\s *)\\s *" end-pt t)
+                   (while (verilog-re-search-forward-quick "\\.\\s *\\([a-zA-Z0-9`_$]+\\)\\s *(\\s *\\1\\s *)\\s *" end-pt t)
                      (delete-region (match-beginning 0) (match-end 0))
                      (setq end-pt (- end-pt (- (match-end 0) (match-beginning 0))))  ; Keep it correct
                      (while (or (looking-at "[ \t\n\f,]+")