TARDIS (Quarkware BBS, the Ruby BBS), uses just \n for QWK message
line deliniation, but we were expected \r\n terminated lines here.
Also, apparently there was trailing white-space on the "json-end"
line, so handle that case too.
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From Rob Swindell@VERT to Git commit to main/sbbs/master on Wed Feb 23 13:27:08 2022