Sync with 2.4.6

Documentation/RelNotes/2.4.6.txt

+Git v2.4.6 Release Notes
+========================
+
+Fixes since v2.4.5
+------------------
+
+ * "git fetch --depth=<depth>" and "git clone --depth=<depth>" issued
+   a shallow transfer request even to an upload-pack that does not
+   support the capability.
+
+ * "git fsck" used to ignore missing or invalid objects recorded in reflog.
+
+ * The tcsh completion writes a bash scriptlet but that would have
+   failed for users with noclobber set.
+
+ * Recent Mac OS X updates breaks the logic to detect that the machine
+   is on the AC power in the sample pre-auto-gc script.
+
+ * "git format-patch --ignore-if-upstream A..B" did not like to be fed
+   tags as boundary commits.
+
+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 the 'master'
 branch of the `git.git` repository.
 Documentation for older releases are available here:
 
-* link:v2.4.5/git.html[documentation for release 2.4.5]
+* link:v2.4.6/git.html[documentation for release 2.4.6]
 
 * release notes for
+  link:RelNotes/2.4.6.txt[2.4.6],
   link:RelNotes/2.4.5.txt[2.4.5],
   link:RelNotes/2.4.4.txt[2.4.4],
   link:RelNotes/2.4.3.txt[2.4.3],