static-routes: Fixes bug12763

- This ensures that all ip route and ip rule commands are redirected to null if the output
   is not used to feed into a variable.
- This will prevent any error messages related to empty iproute tables being displayed
   during boot.
- Tested on my vm system and confirmed that the fix in ipsec-interfaces stops the "FIB
   table does not exist" and "RTNETLINK answers: no such file or directory" messages during
   boot.

Fixes: Bug#12763
Tested-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>

src/initscripts/system/static-routes

@@ -29,14 +29,14 @@ function init_table() {
 		return
 	fi
 
-	ip rule add table static
+	ip rule add table static >/dev/null 2>&1
 }
 
 function create_all_routes() {
 	local file=${1}
 	shift
 
-	# Remote all routes.
+	# Remove all routes.
 	ip route flush table static >/dev/null 2>&1
 
 	local status
@@ -54,7 +54,7 @@ function create_all_routes() {
 			continue
 		fi
 
-		ip route add ${network} via ${gateway} table static proto static
+		ip route add ${network} via ${gateway} table static proto static >/dev/null 2>&1
 	done < ${file}
 }