Added a couple of global variables to mhparse.c to allow suppression of the warning about bogus multipart content, and detection of it.
Added a couple of global variables to mhparse.c to allow
suppression of the warning about bogus multipart content,
and detection of it.

dscho/nmh,dscho/nmh,mcr/nmh,mcr/nmh,dscho/nmh,dscho/nmh