metalog: fix bleeding logs onto tty1

This fixes issue #45653 [1]. There are 2 changes involved:

1. Drop the verbosity.
2. Redirect stdout to void (pun intented).

This patch is practically Duncaen's suggestion.

[1]
https://github.com/void-linux/void-packages/issues/45653

srcpkgs/metalog/files/metalog/run

@@ -1,5 +1,3 @@
 #!/bin/sh
-exec 2>&1
-exec 1>&2
 [ -r conf ] && . ./conf
-exec metalog ${OPTS=-v}
+exec metalog ${OPTS} >/dev/null

srcpkgs/metalog/template

@@ -1,7 +1,7 @@
 # Template file for 'metalog'
 pkgname=metalog
 version=20230719
-revision=1
+revision=2
 build_style=gnu-configure
 conf_files="/etc/metalog.conf"
 hostmakedepends="autoconf autoconf-archive automake pkg-config"