If we have a comment, place in a ':' not a ';' (has this *ever* worked?)

If -n is specified and we have a comment, print the comment out too.

Backup of support/htdbm.c r1.11 from httpd-2.1
Submitted by:	Justin Erenkrantz
Reviewed by:	Justin Erenkrantz, Sander Striker, Jeff Trawick, Ian Holsman


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/APACHE_2_0_BRANCH@102120 13f79535-47bb-0310-9956-ffa450edef68