Fix compilation error in DBG_UTIL build
Fix compilation error in DBG_UTIL build

When using a testing flag which is defined inside #if OSL_DEBUG_LEVEL>1,
use the same preprocessor condition. Not #ifdef DBG_UTIL, which is
orthogonal (apparently).

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core