Renaming script + better behavior without color

Without color stderr lines will be prefixed by [ERR]

pssh.sh → mhssh

@@ -46,7 +46,7 @@ case "$1" in
 	-n|--no-color)
 		[ $# -eq 1 ] && nocmd
 		shift
-		red=''
+		red='[ERR] '
 		grn=''
 		raz=''
 	;;