Expand on the "Too few arguments" message you get when invoking dbmmanage

with less than two args.

Submitted by: Skip Montanaro (skip@calendar.com)
Reviewed by: Rob Hartill, Randy Terbush, Chuck Murcko, Ben Laurie


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@77116 13f79535-47bb-0310-9956-ffa450edef68