UTF8: java -agent/-agentlib/-Xrunjdwp options not all treated as modified utf-8

The options string coming into Agent_OnLoad() are in modified UTF-8.

There are multiple strings at issue here, the transport option, and the launch option,
and the onthrow option.

See suggested fix.

This will prevent any non ISO-Latin characters from being treated properly
when loading this agent, e.g. launch=foobar where foobar contains any
non-ISO-Latin characters will likely not work, unless the platform encoding
in indeed UTF-8 (unlikely).

###@###.### 2004-04-27
###@###.### 10/8/04 00:23 GMT