Return -1 on error as advertised.
authorray <ray@openbsd.org>
Wed, 14 Jul 2010 22:15:57 +0000 (22:15 +0000)
committerray <ray@openbsd.org>
Wed, 14 Jul 2010 22:15:57 +0000 (22:15 +0000)
commitbdcce04dfec768beba2c9a1232bb7f98efdeb0f6
treee4ae2d486a472c392b5f18885e43b47b1909005c
parenta256aad22de5890d373a7db23bb9f41cc273d352
Return -1 on error as advertised.
Handle case when only one stream failed.

OK otto, millert
usr.bin/diff/diffreg.c