pyuno_dlopenwrapper: give error message before abort() if dlopen() fails
pyuno_dlopenwrapper: give error message before abort() if dlopen() fails

Change-Id: Idf39b33efe4c7838f2669aec8773616416811d57

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