Sync with 1.8.5.3

* maint:
  Git 1.8.5.3
  pack-heuristics.txt: mark up the file header properly

Documentation/RelNotes/1.8.5.3.txt

+Git v1.8.5.3 Release Notes
+==========================
+
+Fixes since v1.8.5.2
+--------------------
+
+ * The "--[no-]informative-errors" options to "git daemon" were parsed
+   a bit too loosely, allowing any other string after these option
+   names.
+
+ * A "gc" process running as a different user should be able to stop a
+   new "gc" process from starting.
+
+ * An earlier "clean-up" introduced an unnecessary memory leak to the
+   credential subsystem.
+
+ * "git mv A B/", when B does not exist as a directory, should error
+   out, but it didn't.
+
+ * "git rev-parse <revs> -- <paths>" did not implement the usual
+   disambiguation rules the commands in the "git log" family used in
+   the same way.
+
+ * "git cat-file --batch=", an admittedly useless command, did not
+   behave very well.
+
+Also contains typofixes, documentation updates and trivial code clean-ups.

Documentation/git.txt

@@ -43,9 +43,10 @@ unreleased) version of Git, that is available from 'master'
 branch of the `git.git` repository.
 Documentation for older releases are available here:
 
-* link:v1.8.5.2/git.html[documentation for release 1.8.5.2]
+* link:v1.8.5.3/git.html[documentation for release 1.8.5.3]
 
 * release notes for
+  link:RelNotes/1.8.5.3.txt[1.8.5.3],
   link:RelNotes/1.8.5.2.txt[1.8.5.2],
   link:RelNotes/1.8.5.1.txt[1.8.5.1],
   link:RelNotes/1.8.5.txt[1.8.5].

Documentation/technical/pack-heuristics.txt

-        Concerning Git's Packing Heuristics
-        ===================================
+Concerning Git's Packing Heuristics
+===================================
 
         Oh, here's a really stupid question: