msttsappender.cxx: Avoid temporary string variable.
msttsappender.cxx: Avoid temporary string variable.

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