revert unwanted change

Author: vstinner

Modules/_testcapimodule.c

@@ -18,6 +18,7 @@
 #include <float.h>                // FLT_MAX
 #include <signal.h>
 #include <stddef.h>               // offsetof()
+
 #ifdef HAVE_SYS_WAIT_H
 #  include <sys/wait.h>           // W_STOPCODE
 #endif
@@ -51,7 +52,6 @@ get_testerror(PyObject *self) {
     return state->error;
 }
 
-
 /* Raise _testcapi.error with test_name + ": " + msg, and return NULL. */
 
 static PyObject *