ip: Make uniform the use of synonyms list, show and lst

Where used in the ip tool, the 'show' option always has the synonyms
'list' and 'lst', except for ip-token and ip-addrlabel, which are missing
'lst'. Add this as a synonym for these commands.
Signed-off-by: Mark Einon <mark.einon@gmail.com>

ip/ipaddrlabel.c

@@ -248,6 +248,7 @@ int do_ipaddrlabel(int argc, char **argv)
 	if (argc < 1) {
 		return ipaddrlabel_list(0, NULL);
 	} else if (matches(argv[0], "list") == 0 ||
+		   matches(argv[0], "lst") == 0 ||
 		   matches(argv[0], "show") == 0) {
 		return ipaddrlabel_list(argc-1, argv+1);
 	} else if (matches(argv[0], "add") == 0) {

ip/iptoken.c

@@ -195,6 +195,7 @@ int do_iptoken(int argc, char **argv)
 	if (argc < 1) {
 		return iptoken_list(0, NULL);
 	} else if (matches(argv[0], "list") == 0 ||
+		   matches(argv[0], "lst") == 0 ||
 		   matches(argv[0], "show") == 0) {
 		return iptoken_list(argc - 1, argv + 1);
 	} else if (matches(argv[0], "set") == 0 ||