fix build error for ccls build

src/sql/engine/expr/ob_expr_to_outfile_row.cpp

@@ -292,6 +292,6 @@ int ObExprToOutfileRow::copy_string_to_buf(char *buf, const int64_t buf_len, int
 {
   return databuff_memcpy(buf, buf_len, pos, str.length(), str.ptr());
 }
-
-}
-}
+
+}
+}