pfctl: resolve '-s' ambiguity

The 'introduce source and state limiters' commit added source and state
limiters, and used Stlimiters and Srclimiters as show options. However,
FreeBSD had 'Sources' as a show option already. This means that
'pfctl -sS' would now be ambiguous. Avoid this by renaming the new
options.

Sponsored by:	Rubicon Communications, LLC ("Netgate")

sbin/pfctl/pfctl.8

@@ -524,7 +524,7 @@ When used together with
 interface statistics are also shown.
 .Fl i
 can be used to select an interface or a group of interfaces.
-.It Cm Stlimiter
+.It Cm LimiterStates
 Show information about state limiters.
 If
 .Fl R Ar id
@@ -532,7 +532,7 @@ is specified as well,
 only the state limiter identified by
 .Ar id
 is shown.
-.It Cm Srclimiter
+.It Cm LimiterSrcs
 Show information about source limiters.
 If
 .Fl R Ar id

sbin/pfctl/pfctl.c

@@ -320,8 +320,8 @@ static const struct pfctl_opt_id showopt_list[] = {
 	{ "Tables",		SHOWOPT_TABLES },
 	{ "osfp",		SHOWOPT_OSFP },
 	{ "Running",		SHOWOPT_RUNNING },
-	{ "Stlimiters",		SHOWOPT_STATELIMS },
-	{ "Srclimiters",	SHOWOPT_SOURCELIMS },
+	{ "LimiterStates",	SHOWOPT_STATELIMS },
+	{ "LimiterSrcs",	SHOWOPT_SOURCELIMS },
 	{ "creatorids",		SHOWOPT_CREATORIDS },
 	{ "all",		SHOWOPT_ALL },