[svn] * src/post.c: Always replace message ID in posted message if existing message ID fails Prt_isValidMsgId. * noffle.conf.example,docs/noffle.conf.5,src/configfile.c: Change replace-messageid default from 'yes' to 'no'. These days bad message IDs from newsreaders shouldn't happen (or should be more easily fixable from the newsreader config), and replacing message IDs causes havoc if you're gatewaying mailing lists or similar.