test_escape: Fix handling of short options in getopt_long()

This addresses two errors in the module, based on the set of options
supported:
- '-c', for --conninfo, was not listed.
- '-f', for --force-unsupported, was not listed.

While on it, these are now listed in an alphabetical order.

Author: Japin Li
Discussion: https://postgr.es/m/ME0P300MB04451FB20CE0346A59C25CADB6FA2@ME0P300MB0445.AUSP300.PROD.OUTLOOK.COM
Backpatch-through: 13

src/test/modules/test_escape/test_escape.c

@@ -824,7 +824,7 @@ main(int argc, char *argv[])
 		{NULL, 0, NULL, 0},
 	};
 
-	while ((c = getopt_long(argc, argv, "vqh", long_options, &option_index)) != -1)
+	while ((c = getopt_long(argc, argv, "c:fhqv", long_options, &option_index)) != -1)
 	{
 		switch (c)
 		{