Windows: fix strict typecast (#206)

Author: russell-taylor

windows/hid.c

@@ -192,7 +192,7 @@ static void register_error(hid_device *dev, const char *op)
 		NULL,
 		GetLastError(),
 		MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
-		(LPVOID)&msg, 0/*sz*/,
+		(LPWSTR)&msg, 0/*sz*/,
 		NULL);
 
 	/* Get rid of the CR and LF that FormatMessage() sticks at the