QString nick = nickFromMask(sender()).toLower();
if(!nick.isEmpty()) {
int chopCount = 0;
- while(nick.at(nick.count() - 1 - chopCount) == '_')
+ while(chopCount < nick.size() && nick.at(nick.count() - 1 - chopCount) == '_')
chopCount++;
if(chopCount < nick.size())
nick.chop(chopCount);