Remove unused 'z' option from getopt_long's optstring

In addition, I permuted shortopts to make it more readable.

Signed-off-by: Nagy Gabor <ngaba@bibl.u-szeged.hu>
Signed-off-by: Dan McGee <dan@archlinux.org>

src/pacman/pacman.c

@@ -416,7 +416,7 @@ static int parseargs(int argc, char *argv[])
 		{0, 0, 0, 0}
 	};
 
-	while((opt = getopt_long(argc, argv, "RUDQSTr:b:vkhscVfmnoldepqituwygz", opts, &option_index))) {
+	while((opt = getopt_long(argc, argv, "DQRSTUVb:cdefghiklmnopqr:stuvwy", opts, &option_index))) {
 		alpm_list_t *list = NULL, *item = NULL; /* lists for splitting strings */
 
 		if(opt < 0) {