buildscript.sh: show optional silent flag in build menu

Signed-off-by: Jan-Tarek Butt <tarek@ring0.de>

buildscript.sh

@@ -24,7 +24,7 @@ help_print(){
   echo "    target_list         build all gluon targets"
   echo "    all                 build all gluon targets for each VPN"
   echo "    (optional) add \"fast\" as a parameter to build on multicore"
-#  echo "    (optional) add \"silent\" as a parameter to avoid loads of output"
+  echo "    (optional) add \"silent\" as a parameter to avoid loads of output"
   echo "  clean <target>        targets provided by gluon"
   echo "    all                 clean all targets"
   echo "    (optional) add \"fast\" as a parameter to clean on multicore"