test: add extra fflush()

Make sure everything is flushed before and after running a test, so we
make sure output will never be mixed up.

Signed-off-by: Davide Bettio <davide@uninstall.it>

Author: bettio

tests/test.c

@@ -640,7 +640,9 @@ int test_module_execution(bool beam, struct Test *test)
         return 0;
     }
     fprintf(stderr, "%s:\r", test->test_module);
+    fflush(NULL);
     int result = beam ? test_beam(test) : test_atom(test);
+    fflush(NULL);
     if (result) {
         fprintf(stderr, "\x1b[2K\x1b[1;31m%s:\x1b[34GFAILED\x1b[0m\n", test->test_module);
         return 1;