Make rm more safe.

sbin/grub2-unsign

@@ -14,9 +14,7 @@ fi
 
 
 # Then remove the signatures.
-for i in `find /boot -name "*.sig"` 
-do
-	rm $i
-done
+find /boot -name '*.sig' -exec rm -- '{}' +
+
 echo "GRUB2 unsigned. WARNING: If you want to deactivate GRUB2's signature feature, change the check_signatures variable in the headers file!"
 exit 0