Propagate error message from unfound dynamic lib when not found as builtin either. Fixes issue #282.
Propagate error message from unfound dynamic lib when not found as builtin either.
Fixes issue #282.

norton/chibi-scheme,holmescn/chibi-scheme,holmescn/chibi-scheme,norton/chibi-scheme,norton/chibi-scheme,holmescn/chibi-scheme,norton/chibi-scheme,norton/chibi-scheme,holmescn/chibi-scheme,holmescn/chibi-scheme,norton/chibi-scheme