/in/foo.c: In function 'main':
/in/foo.c:11:1: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
 else
 ^~~~
/in/foo.c:13:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'else'
  return 0;
  ^~~~~~