gjb f9cdf3e5ad Fix VOLUME_LABEL when BRANCH contains non-alpha
characters, in particular '-' and '.'.

Submitted by:	des
Tested by:	des
MFC after:	3 days
X-MFC-10.1:	yes
Sponsored by:	The FreeBSD Foundation
2014-11-04 17:24:13 +00:00
..
2014-09-18 16:53:44 +00:00