Re: Fix pledge(2) on x11/st

As pointed out by tb@ it's rather pointless calling pledge(2) just before
execvp(3), so I dropped that chunk.

Index: patches/patch-st_c
===================================================================
RCS file: /cvs/ports/x11/st/patches/patch-st_c,v
retrieving revision 1.3
diff -u -p -u -r1.3 patch-st_c
--- patches/patch-st_c 5 Apr 2017 21:29:57 -0000 1.3
+++ patches/patch-st_c 26 Sep 2017 22:09:21 -0000
@@ -1,6 +1,7 @@
$OpenBSD: patch-st_c,v 1.3 2017/04/05 21:29:57 juanfra Exp $
---- st.c.orig Thu Aug 11 16:25:58 2016
-+++ st.c Wed Mar 29 14:20:44 2017
+Index: st.c
+--- st.c.orig
++++ st.c
@@ -1454,9 +1454,15 @@ ttynew(void)
die("ioctl TIOCSCTTY failed: %s\n", strerror(errno));
close(s);
@@ -12,7 +13,7 @@ $OpenBSD: patch-st_c,v 1.3 2017/04/05 21
execsh();
break;
default:
-+ if (pledge("stdio rpath tty", NULL) == -1)
++ if (pledge("stdio rpath tty proc", NULL) == -1)
+ die("pledge\n");
close(s);
cmdfd = m;