replace () with (void) in function definitions

`()` means that any amt of arguments will be accepted, which isn't what
i want

1 files changed, 3 insertions, 3 deletions

diff --git a/src/kernel/tests/tests.h b/src/kernel/tests/tests.h
index 5b9697c..aa8597b 100644
--- a/src/kernel/tests/tests.h
+++ b/src/kernel/tests/tests.h
@@ -1,6 +1,6 @@
 #pragma once
 
-void tests_all();
+void tests_all(void);
 
-void tests_utils();
-void tests_vfs();
+void tests_utils(void);
+void tests_vfs(void);