buildd/functions.sh: use dash-compliant subtraction
authorChristian Hofstaedtler <ch@grml.org>
Tue, 8 Nov 2011 11:50:00 +0000 (12:50 +0100)
committerChristian Hofstaedtler <ch@grml.org>
Tue, 8 Nov 2011 12:10:21 +0000 (13:10 +0100)

No differences found