generatebuildnumber: source the proper file
generatebuildnumber: source the proper file

.bash_login doesn't exist, and 'eval `cat blah`' is less decent than
'source blah'.

Signed-off-by: Steven Noonan <4068f0880b399410602d694b3cc711c8a8f4727e@uplinklabs.net>

prophile/crisscross,tycho/crisscross,tycho/crisscross,tycho/crisscross,prophile/crisscross,prophile/crisscross