perl -We "print  sprintf 'v.%02d.%03d', q | Revision 1.12.123 | =~ /(\d+)\.(\d+)\.(\d+)/"
Redundant argument in sprintf at -e line 1.
v.01.012

perl -We "print  sprintf 'v.%02d.%02d.%03d', (q | Revision 1.12.123 | =~ /(\d+)\.(\d+)\.(\d+)/)"
v.01.12.123