Fix typo (unqique -> unique)

Co-Authored-By: Robin Kruppe <[email protected]>

Author: Centril

src/test/ui/lint/lint-ctypes-enum.rs

@@ -45,7 +45,7 @@ extern {
    fn option_ref(x: Option<&'static u8>);
    fn option_fn(x: Option<extern "C" fn()>);
    fn nonnull(x: Option<std::ptr::NonNull<u8>>);
-   fn unqique(x: Option<std::ptr::Unique<u8>>); //~ ERROR enum has no representation hint
+   fn unique(x: Option<std::ptr::Unique<u8>>); //~ ERROR enum has no representation hint
    fn nonzero_u8(x: Option<num::NonZeroU8>);
    fn nonzero_u16(x: Option<num::NonZeroU16>);
    fn nonzero_u32(x: Option<num::NonZeroU32>);