[pre-commit.ci lite] apply automatic fixes

Author: pre-commit-ci-lite[bot]

source/module_basis/module_ao/test/ORB_unittest.h

@@ -51,7 +51,7 @@ class test_orb : public testing::Test
     double randr(double Rmax);
     void gen_table_center2();
 
-    bool force_flag = 0;
+    bool force_flag = false;
     int my_rank = 0;
     int ntype_read;