fix for older git versions
authorChris Koeritz <fred@gruntose.com>
Sun, 7 Jan 2018 17:48:41 +0000 (12:48 -0500)
committerChris Koeritz <fred@gruntose.com>
Sun, 7 Jan 2018 17:48:41 +0000 (12:48 -0500)
commitc859a0445186ba8cb1aa1a7354e4c5b9de7cc0c3
tree7ecf7645139755d537dd218aaa99f64c60019f7f
parent92107a9ca9a480a0067206debaf141d132b62333
fix for older git versions

checking the version so we don't try to use autostash before it is available.
scripts/rev_control/version_control.sh