When invoked with no file arguments, display usage and fail instead of
authorguenther <guenther@openbsd.org>
Tue, 2 Jan 2018 06:56:41 +0000 (06:56 +0000)
committerguenther <guenther@openbsd.org>
Tue, 2 Jan 2018 06:56:41 +0000 (06:56 +0000)
commit1ada7db47ea8f19e0fef96fa06dd66a7954c3611
tree120e037fcf31e9bfb3fefcc4536f845546c0f592
parent9412f04aafef14c47aee05db6f03d0d659e710b3
When invoked with no file arguments, display usage and fail instead of
silently doing nothing.

suggested by Klemens Nanni (kl3 (at) posteo.org), from FreeBSD r92772
ok millert@
usr.bin/paste/paste.c