Sync with 2.7.3

diff --combined Documentation/git.txt
index 2754af8f7782d4a13fce4f5752737e3106491f22,c3da46dc6abe27d5622aea3c21d43ed947446ea8..951b24661e45ffe8b11444166e3a6cc7a3c6e1d2
--- 1/Documentation/git.txt
--- 2/Documentation/git.txt
+++ b/Documentation/git.txt
@@@ -43,9 -43,10 +43,10 @@@ unreleased) version of Git, that is ava
  branch of the `git.git` repository.
  Documentation for older releases are available here:
  
- * link:v2.7.2/git.html[documentation for release 2.7.2]
+ * link:v2.7.3/git.html[documentation for release 2.7.3]
  
  * release notes for
+   link:RelNotes/2.7.3.txt[2.7.3],
    link:RelNotes/2.7.2.txt[2.7.2],
    link:RelNotes/2.7.1.txt[2.7.1],
    link:RelNotes/2.7.0.txt[2.7].
@@@ -1065,11 -1066,6 +1066,11 @@@ of clones and fetches
        cloning of shallow repositories.
        See 'GIT_TRACE' for available trace output options.
  
 +'GIT_TRACE_EXCLUDE'::
 +      Enables trace messages that can help debugging .gitignore
 +      processing. See 'GIT_TRACE' for available trace output
 +      options.
 +
  'GIT_LITERAL_PATHSPECS'::
        Setting this variable to `1` will cause Git to treat all
        pathspecs literally, rather than as glob patterns. For example,
@@@ -1130,6 -1126,8 +1131,6 @@@
          - `ssh`: git over ssh (including `host:path` syntax,
            `git+ssh://`, etc).
  
 -        - `rsync`: git over rsync
 -
          - `http`: git over http, both "smart http" and "dumb http".
            Note that this does _not_ include `https`; if you want both,
            you should specify both as `http:https`.