Fix 'may be used uninitialized' warnings found by cppcheck
Fix 'may be used uninitialized' warnings found by cppcheck

matzipan/evolution-data-server,tintou/evolution-data-server,matzipan/evolution-data-server,tintou/evolution-data-server,matzipan/evolution-data-server,matzipan/evolution-data-server,tintou/evolution-data-server,matzipan/evolution-data-server,tintou/evolution-data-server