Fix compile with "-DQT_USE_FAST_CONCATENATION -DQT_USE_FAST_OPERATOR_PLUS"
Fix compile with "-DQT_USE_FAST_CONCATENATION -DQT_USE_FAST_OPERATOR_PLUS"

svn path=/trunk/KDE/kdenetwork/kppp/; revision=1234107

KDE/kppp,KDE/kppp,KDE/kppp,KDE/kppp