sendmail and its clones to tell it to ignore periods (since we close the pipe when we're done, rather than signalling it with
a period). Has been tested with sendmail and postfix.
Patch by Dave Miller <justdave@syndicomm.com>
r= afranke, bugzilla@bkor.dhs.org, jake
git-svn-id: svn://10.0.0.236/trunk@113739 18797224-902f-48f8-a5cc-f745e15eee43