unix mail cleanup bulletproofing
commitb8d1f44272a6d0cf3f46fbe8dd34b7ae33fced46
authorPatR <rankin@nethack.org>
Thu, 26 May 2016 00:25:47 +0000 (25 17:25 -0700)
committerPatR <rankin@nethack.org>
Thu, 26 May 2016 00:25:47 +0000 (25 17:25 -0700)
treeffad9cdb5e0a92e80862a81ae7d78f047c1f5d03
parent656476e409e12ff20d5372052b263e15626ba757
unix mail cleanup bulletproofing

If the recently added release routine ever gets called twice for
some reason, don't free already freed memory, or worse, was freed
here and then allocated for something else which is still in use.
src/mail.c