Sync with 1.7.5.4

Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/RelNotes/1.7.5.4.txt

@@ -8,6 +8,9 @@ Fixes since v1.7.5.3
    that it was told to add everthing ('a') when up-arrow was pressed by
    mistake.
 
+ * Setting a git command that uses custom configuration via "-c var=val"
+   as an alias caused a crash due to a realloc(3) failure.
+
  * "git diff -C -C" used to disable the rename detection entirely when
    there are too many copy candidate paths in the tree; now it falls
    back to "-C" when doing so would keep the copy candidate paths

Documentation/git.txt

@@ -44,9 +44,10 @@ unreleased) version of git, that is available from 'master'
 branch of the `git.git` repository.
 Documentation for older releases are available here:
 
-* link:v1.7.5.3/git.html[documentation for release 1.7.5.3]
+* link:v1.7.5.4/git.html[documentation for release 1.7.5.4]
 
 * release notes for
+  link:RelNotes/1.7.5.4.txt[1.7.5.4],
   link:RelNotes/1.7.5.3.txt[1.7.5.3],
   link:RelNotes/1.7.5.2.txt[1.7.5.2],
   link:RelNotes/1.7.5.1.txt[1.7.5.1],