NAME
----
-git-rev-parse - Pick out and massage parameters.
+git-rev-parse - Pick out and massage parameters
SYNOPSIS
--git-dir::
Show `$GIT_DIR` if defined else show the path to the .git directory.
---short, short=number::
+--short, --short=number::
Instead of outputting the full SHA1 values of object names try to
abbriviate them to a shorter unique name. When no length is specified
7 is used. The minimum length is 4.