Coding style fixes, fix typos.

Change-Id: I2b11cf7b2b9ad7e32419d2995875c9f5fc0e4c89
Reviewed-by: Laszlo Papp <lpapp@kde.org>
More coding style fixes ('{' placement, empty lines)

Change-Id: If30236a5122919080ab2d87c34e4e2d47cc3a9cc
Reviewed-by: Laszlo Papp <lpapp@kde.org>
Add missing export macro on QCommandLineParser class.

It's obviously part of the public API, due to QCoreApplication::commandLineParser().

Change-Id: I28d50af16735606a56e6811d58984644e2147625
Reviewed-by: Laszlo Papp <lpapp@kde.org>