typo in SQL (change order of newline and comma)

Author: PhilippSalvisberg

sqldev/src/main/java/org/utplsql/sqldev/dal/UtplsqlDao.java

@@ -436,7 +436,7 @@ public List<Node> testables(final String objectType) {
                 sb.append("       object_type || '.' || object_name AS id,\n");
                 sb.append("       object_type AS parent_id,\n");
                 sb.append("       1 AS leaf,\n");
-                sb.append("       1 AS generatable\n,");
+                sb.append("       1 AS generatable,\n");
                 sb.append("       1 AS multiselectable\n");
                 sb.append("  FROM user_procedures\n");
                 sb.append(" WHERE object_type = ?\n");