Fix support for 'Git open...'.
Fix support for 'Git open...'.

There were three problems that prevented this from working:

 - The argument list for run_log does not contain two arguments.
 - The '--follow' option of git-log only works on paths.
 - Regular expressions are used, but the 're' module is not imported.

sunnyagain/sublime-text-git,kemayo/sublime-text-git