undo accidental string merge

amends 51980595e1.

Change-Id: Ie4fd4a6d762f4c87dabd7d3124f3397b0f853b77
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
prune unused filesDiffer() and writeToFile() functions

Change-Id: I470a5b3514260a02e73389d057d89c64b08e05d0
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
de-duplicate writeout of config files

Change-Id: Iaad06f170cf2be3d3fca533a735b69316347ed5b
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
don't change timestamp of unchanged files

Change-Id: Ifa5c15a37d072c6c8edb50f8a4343d99ee0dccf9
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
un-clash iterator names

Change-Id: I96b995c7f6dec06f75a61e109c419c9204744d90
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Define QT_NO_DEBUG with RelWithDebInfo and MinSizeRel builds.

Task-number: QTBUG-32403

Change-Id: I709ca32ca5bc1a342593357735ef3911ef849eb9
Reviewed-by: Clinton Stimpson <clinton@elemtech.com>
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>