version: support dirty no-git version format
version: support dirty no-git version format

If the git command cannot be found or if git describe
fails for any reason, git-version.sh generates a
version string such as
	v0.6.00-dirty
This commit allows the version command to properly parse
such a version string.

mrirecon/bart,sidward/bart,sdimoudi/bart,mrirecon/bart,sdimoudi/bart,sidward/bart,mrirecon/bart,mrirecon/bart,sidward/bart,sdimoudi/bart,mrirecon/bart,sdimoudi/bart,sidward/bart,sidward/bart,sdimoudi/bart