Now that wordwrap() is fixed, cols-1 is the correct value to pass.

src/sbbs3/putmsg.cpp

@@ -68,7 +68,7 @@ char sbbs_t::putmsg(const char *buf, long mode)
 		putcom("\x02\x02");
 	if(mode&P_WORDWRAP) {
 		char *wrapped;
-		if((wrapped=::wordwrap((char*)buf, cols, 79, /* handle_quotes: */TRUE)) == NULL)
+		if((wrapped=::wordwrap((char*)buf, cols-1, 79, /* handle_quotes: */TRUE)) == NULL)
 			errormsg(WHERE,ERR_ALLOC,"wordwrap buffer",0);
 		else {
 			truncsp_lines(wrapped);