Exception logging (win32): Handle error codes correctly, add some more strings.

lib/singlepass-backend/src/protect_unix.rs

@@ -111,7 +111,7 @@ pub fn call_protected<T>(f: impl FnOnce() -> T) -> Result<T, CallProtError> {
                 //     Ok(SIGSEGV) => "segmentation violation",
                 //     Ok(SIGBUS) => "bus error",
                 //     Err(_) => "error while getting the Signal",
-                //     _ => "unkown trapped signal",
+                //     _ => "unknown trapped signal",
                 // };
                 // // When the trap-handler is fully implemented, this will return more information.
                 // Err(RuntimeError::Trap {