--- backupninja-0.9.3.orig/src/backupninja.in	2006-09-14 17:21:51.000000000 +0300
+++ backupninja-0.9.3/src/backupninja.in	2006-09-14 17:22:00.000000000 +0300
@@ -145,12 +145,12 @@
 
 # simple lowercase function
 function tolower() {
-	echo "$1" | tr [:upper:] [:lower:]
+	echo "$1" | tr "[:upper:]" "[:lower:]"
 }
 
 # simple to integer function
 function toint() {
-	echo "$1" | tr -d [:alpha:] 
+	echo "$1" | tr -d "[:alpha:]"
 }
 
 #