Merge from origin/emacs-25

0377fe2 ; Spelling fixes
f253695 Update docs for `customize-mode'
4395aaa Fix documentation of 'assoc-string' and 'compare-strings'
ab0ebb9 ; Only load .elc file in tests.
a98aa02 Error on multibyte characters in HTTP request
ea512a7 * lisp/gnus/mm-decode.el (mm-convert-shr-links): Mask keys th...
8297331 ; Revert "Ensure undo-boundary after insert-file-contents."
dc5e65b Unset GIT_DIR when calling Git commands
6cdd8f7 Ensure undo-boundary after insert-file-contents.
4793f5f Clarify documentation of 'line-spacing' and 'line-height'
5f37572 Fix removal of variables from process-environment
e5e886d * admin/authors.el (authors-ignored-files, authors-valid-file...
db0777b * admin/authors.el (authors-aliases, authors-fixed-case): Add...

# Conflicts:
#	doc/lispref/modes.texi
#	lisp/gnus/mm-decode.el

3 files changed, 4 insertions, 4 deletions

diff --git a/src/callproc.c b/src/callproc.c
index 07297820cac..7008b916dad 100644
--- a/src/callproc.c
+++ b/src/callproc.c
@@ -1094,7 +1094,7 @@ add_env (char **env, char **new_env, char *string)
       char *p = *ep, *q = string;
       while (ok)
         {
-          if (*q != *p)
+          if (*p && *q != *p)
             break;
           if (*q == 0)
             /* The string is a lone variable name; keep it for now, we
diff --git a/src/fns.c b/src/fns.c
index 731f0a899a9..dbee33aa9f8 100644
--- a/src/fns.c
+++ b/src/fns.c
@@ -226,7 +226,7 @@ Like in `substring', negative values are counted from the end.
 The strings are compared by the numeric values of their characters.
 For instance, STR1 is "less than" STR2 if its first differing
 character has a smaller numeric value.  If IGNORE-CASE is non-nil,
-characters are converted to lower-case before comparing them.  Unibyte
+characters are converted to upper-case before comparing them.  Unibyte
 strings are converted to multibyte for comparison.
 
 The value is t if the strings (or specified portions) match.
diff --git a/src/minibuf.c b/src/minibuf.c
index 7bad6f0e018..efce7e26b29 100644
--- a/src/minibuf.c
+++ b/src/minibuf.c
@@ -1838,8 +1838,8 @@ DEFUN ("assoc-string", Fassoc_string, Sassoc_string, 2, 3, 0,
 This returns the first element of LIST whose car matches the string or
 symbol KEY, or nil if no match exists.  When performing the
 comparison, symbols are first converted to strings, and unibyte
-strings to multibyte.  If the optional arg CASE-FOLD is non-nil, case
-is ignored.
+strings to multibyte.  If the optional arg CASE-FOLD is non-nil, both
+KEY and the elements of LIST are upcased for comparison.
 
 Unlike `assoc', KEY can also match an entry in LIST consisting of a
 single string, rather than a cons cell whose car is a string.  */)