delted unnecessary backslashes

func/db.sh

@@ -391,7 +391,7 @@ unsuspend_pgsql_database() {
 # Get MySQL disk usage
 get_mysql_disk_usage() {
     mysql_connect $HOST
-    query="SELECT SUM( data_length + index_length ) / 1024 / 1024 \'Size\'
+    query="SELECT SUM( data_length + index_length ) / 1024 / 1024 'Size'
         FROM information_schema.TABLES WHERE table_schema='$database'"
     usage=$(mysql_query "$query" |tail -n1)
     if [ "$usage" == '' ] || [ "$usage" == 'NULL' ] || [ "${usage:0:1}" -eq '0' ]; then