Fixed the copy() method so that it will properly reset the err field in the "rhs" object.
Fixed the copy() method so that it will properly reset the err field in the
"rhs" object.

ccpaging/log4cplus,hunter-packages/log4cplus,hunter-packages/log4cplus,hunter-packages/log4cplus,csuideal/log4cplus,csuideal/log4cplus,ccpaging/log4cplus,csuideal/log4cplus,csuideal/log4cplus,ccpaging/log4cplus,ccpaging/log4cplus,hunter-packages/log4cplus