create ignored packages file if not existent in ignore command

pman.sh

@@ -56,6 +56,12 @@ elif [ "$command_args" = "ignored" ]; then
   command="echo"
   command_args="$(cat $ignoredpkgs_file | sed 's/IgnorePkg = //' | sort)"
 elif [ "$command_args" = "ignore" ]; then
+  if [ ! -f "$ignoredpkgs_file" ]; then
+    su_needed=true
+    command="touch"
+    command_args="$ignoredpkgs_file"
+    execute_command
+  fi
   for pkg in "${@}"; do
     if [ "$(grep -e "$pkg$" $ignoredpkgs_file)" != "" ]; then
       echo "$pkg is already ignored, skipping..."