Fix typo ("message", not "messsage").

ctrl/text.dat

@@ -64,7 +64,7 @@
 "Delete mail from %s"                                   054 DeleteMailQ
 "OK"                                                    055 OK
 "\r\n
_
b
hForward mail to: 
w"                         056 ForwardMailTo
-"Save/Append messsage to another file"                  057 SaveMsgToFile
+"Save/Append message to another file"                  057 SaveMsgToFile
 "
_
y
hPath/Filename to write to: 
n"                   058 FileToWriteTo
 "
n\r\nYou have no sent messages pending.\r\n"          059 NoMailSent
 "\r\n
g
hMail that you've sent still pending:"\         060 MailSentLstHdr