CVS: cvs.openbsd.org: src

[Jean-Francois Brousseau <jfb_(_at_)_cvs_(_dot_)_openbsd_(_dot_)_org>]

CVSROOT:	/cvs
Module name:	src
Changes by:	jfb_(_at_)_cvs_(_dot_)_openbsd_(_dot_)_org	2005/04/20 17:11:30

Modified files:
	usr.bin/cvs    : cvs.c cvs.h rcs.c rcs.h tag.c 

Log message:
check the validity of tag names passed to the tag command, and print
an abort message if the tag is invalid.  also, match gnu cvs behaviour
with regards to command usage output on usage errors.

ok joris