Krazy fixes: Check for code that should be considered crashy. [crashy] (Part 2/2)
Review Request #126224 - Created Dec. 2, 2015 and submitted
Fix the rest of the krazy warnings (and places where krazy did not found the problem) about QDialog::exec() usage.
Hope the next reviews will get smaller... at least these are the last krazy warnings.
Compiled, installed and opened most of the modified dialogs without problems.
Removed a useless check if dlg != nullptr
For the other two issues I prefer separate reviews (after the move to kdereview, maybe even after 1.7 is out)