Seems that people think it's useful for brevity so make it explicit in
the CODING_STYLE.
unlink("/foo/bar/baz");
```
+ When returning from a `void` function, you may also want to shorten the error
+ path boilerplate by returning a function invocation cast to `(void)` like so:
+
+ ```c
+ if (condition_not_met)
+ return (void) log_tests_skipped("Cannot run ...");
+ ```
+
Don't cast function calls to `(void)` that return no error
conditions. Specifically, the various `xyz_unref()` calls that return a
`NULL` object shouldn't be cast to `(void)`, since not using the return value