std.stdio: StdioException.opCall() calls getErrno like a property, but getErrno is not marked as a property. Compiling with -property switch generates an error.
https://github.com/D-Programming-Language/phobos/pull/342
https://github.com/D-Programming-Language/phobos/commit/e312f9898b4132db91fff743cee7d570a23ed55b