make local variables local

.. to not interfere with variables in the scripts that source these utils.

logger.sh

@@ -13,13 +13,13 @@ loggerseparator () {
 }
 
 saferun () {
-    allcommands=""
+    local allcommands=""
     for var in "$@"; do
         allcommands="$allcommands$var /// "
     done
     logger "Enter to run the following command(s): $allcommands"
     read ok
-    ret=0
+    local ret=0
     for var in "$@"; do
         if [[ $ret -eq 0 ]]; then
             $var