fix a crash while using the -s option;

the -s option requires an argument to be passed so add a leading : to
getopt_long()

sysutils/htop/Makefile

@@ -1,10 +1,10 @@
-# $OpenBSD: Makefile,v 1.19 2019/07/12 20:49:43 sthen Exp $
+# $OpenBSD: Makefile,v 1.20 2020/04/19 12:43:42 robert Exp $
 
 COMMENT =	interactive process viewer
 
 V =		2.2.0
 DISTNAME =	htop-${V}
-REVISION =	13
+REVISION =	14
 
 CATEGORIES =	sysutils
 

sysutils/htop/patches/patch-htop_c

@@ -0,0 +1,14 @@
+$OpenBSD: patch-htop_c,v 1.1 2020/04/19 12:43:43 robert Exp $
+
+Index: htop.c
+--- htop.c.orig
++++ htop.c
+@@ -93,7 +93,7 @@ static CommandLineSettings parseArguments(int argc, ch
+ 
+    int opt, opti=0;
+    /* Parse arguments */
+-   while ((opt = getopt_long(argc, argv, "hvCst::d:u:p:i", long_opts, &opti))) {
++   while ((opt = getopt_long(argc, argv, "hvCs:t::d:u:p:i", long_opts, &opti))) {
+       if (opt == EOF) break;
+       switch (opt) {
+          case 'h':