replace () with (void) in function definitions

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

1 files changed, 0 insertions, 1 deletions

diff --git a/todo.txt b/todo.txt
index 90f0376..b0280d5 100644
--- a/todo.txt
+++ b/todo.txt
@@ -1,2 +1 @@
 don't use pointer types for useland pointers
-replace () with (void)