* cvs2cl.pl

  (read_date_author_and_state): Check that $fullname is defined before
  looking at its value.

Patch by: Peter Kjellerstedt <peter.kjellerstedt{_AT_}axis.com>

His bug report said "there is a small bug in cvs2cl.pl in
read_date_author_and_state() if someone has an entry in the
/etc/passwd file but an empty gecos field.".