Update mysql_backup.sh

mysql_backup.sh

@@ -137,13 +137,16 @@ echo $$ > ${pidfile} ;
 prefix="mysqldump.`hostname -s`.${name}";
 
 if [ `ls ${dir} | grep ${prefix} | wc -l` -ge "${copies}" ] ; then
-	i=1;
+	
+    i=1 ;
+	
     for filename in `ls ${dir} | grep ${prefix} | sort -r` ; do
 		if [ "${i}" -ge "${copies}" ] ; then
 			rm "${dir}/${filename}" ;
 		fi
-		i=$(expr $i + 1)
+		i=$(expr $i + 1) ;
 	done
+
 fi
 
 if [ ! "${quiet}" ] ; then