37150: _git: Autocomplete .. for commit ranges

This patch makes three changes:

- Enable 'git diff o/m<TAB>' to complete to 'origin/master..' with the
  ".." being autoremovable.

  This is implemented by the first hunk.  That hunk is a functional
  subset of Oliver's users/20705, however, the latter hasn't been
  committed.

- Make typing "^" remove the "..", in light of the syntax "foo^..bar".

- Make typing "." _not_ remove the ".." but simply append it, since
  "foo...bar" is a valid and useful syntax.

1 files changed, 3 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index a845da630..eb25e08d3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2015-12-05  Daniel Shahaf  <d.s@daniel.shahaf.name>
 
+	* 37150: Completion/Unix/Command/_git: _git: Autocomplete .. for
+	commit ranges
+
 	* 36957: Completion/Unix/Command/_git: _git: Apply matchspecs to
 	filename completion such as 'git log f/b<TAB>' → 'foo/bar.txt's