refactor: uncrustify

Notable changes: replace all infinite loops to `while(true)` and remove
`int` from `unsigned int`.

src/nvim/debugger.c

@@ -126,7 +126,7 @@ void do_debug(char *cmd)
   }
 
   // Repeat getting a command and executing it.
-  for (;;) {
+  while (true) {
     msg_scroll = true;
     need_wait_return = false;