soycDetailed undocumented but mentioned in documentation

[zbynek]

gwt/dev/core/src/com/google/gwt/dev/util/arg/ArgHandlerSoycDetailed.java

Line 49 in 552c72e

return true;

declares it as undocumented, removing it from compiler help output.

The dev guide for compile report mentions this option though.

If it's supposed to be working, it should be documented in the compiler help output, otherwise there should be some disclaimer in the online help why is this undocumented.