cgls,loginctl,systemctl: fix -l

Fixup for 98a6e13 "journalctl,loginctl,systemctl,systemd-cgls: add -l
as alias for --full".

src/cgls/cgls.c

@@ -77,7 +77,7 @@ static int parse_argv(int argc, char *argv[]) {
         assert(argc >= 1);
         assert(argv);
 
-        while ((c = getopt_long(argc, argv, "hkaM:", options, NULL)) >= 0) {
+        while ((c = getopt_long(argc, argv, "hkalM:", options, NULL)) >= 0) {
 
                 switch (c) {