Buddies Source Fix (First buddy bug)

punjabilokvirsa's solution on SMF forums ultimate profile thread.

"I've discovered a bug in the code of Ultimate Profile 0.9.1 (don't know
about previous versions). It was creating empty buddies in the
buddy_list field of smf_members table when the person added their first
buddy. This in turn meant that UP's code to check if guests should be
allowed see the other person's UP or their pictures was always true. In
other words, guests could see the locked pictures."

http://www.simplemachines.org/community/index.php?topic=298641.msg3254823#msg3254823