improved code quality, few bug fixes

modules/conf_locale.sh

@@ -31,7 +31,7 @@ conf_locale()
 
     # Removing locales not in the list
     prnt I "Deactivating initial locales from installation..."
-    if [[ $(grep -v '^#' $gen_fname | grep -v -e '^[[:space:]]*$') ]]; then
+    if [[ -n $(grep -v '^#' $gen_fname | grep -v -e '^[[:space:]]*$') ]]; then
         grep -v '^#' $gen_fname | grep -v -e '^[[:space:]]*$' |
             while read -r line; do
                 sed -i "s/$line/# $line/" $gen_fname