tr()-Fixes in Diff-Editor: Capitalization, add comment.
tr()-Fixes in Diff-Editor: Capitalization, add comment.

Change-Id: Ib6b1c15e6a8d3452e3d9d8dd769f500965f08473
Reviewed-by: Jarek Kobus <021d51876099fe64879cc5072886d1d0ff71e1ac@digia.com>
Reviewed-by: Leena Miettinen <885fda02d52616fec24ed5fed9b3f0568fce3ead@digia.com>

richardmg/qtcreator,Distrotech/qtcreator,omniacreator/qtcreator,martyone/sailfish-qtcreator,duythanhphan/qt-creator,duythanhphan/qt-creator,martyone/sailfish-qtcreator,farseerri/git_code,omniacreator/qtcreator,kuba1/qtcreator,danimo/qt-creator,xianian/qt-creator,xianian/qt-creator,Distrotech/qtcreator,colede/qtcreator,omniacreator/qtcreator,maui-packages/qt-creator,colede/qtcreator,omniacreator/qtcreator,kuba1/qtcreator,kuba1/qtcreator,darksylinc/qt-creator,amyvmiwei/qt-creator,kuba1/qtcreator,danimo/qt-creator,maui-packages/qt-creator,martyone/sailfish-qtcreator,martyone/sailfish-qtcreator,farseerri/git_code,danimo/qt-creator,malikcjm/qtcreator,omniacreator/qtcreator,danimo/qt-creator,kuba1/qtcreator,kuba1/qtcreator,danimo/qt-creator,xianian/qt-creator,danimo/qt-creator,duythanhphan/qt-creator,farseerri/git_code,Distrotech/qtcreator,AltarBeastiful/qt-creator,richardmg/qtcreator,farseerri/git_code,amyvmiwei/qt-creator,kuba1/qtcreator,martyone/sailfish-qtcreator,Distrotech/qtcreator,malikcjm/qtcreator,farseerri/git_code,colede/qtcreator,AltarBeastiful/qt-creator,xianian/qt-creator,richardmg/qtcreator,AltarBeastiful/qt-creator,colede/qtcreator,Distrotech/qtcreator,richardmg/qtcreator,colede/qtcreator,martyone/sailfish-qtcreator,amyvmiwei/qt-creator,omniacreator/qtcreator,xianian/qt-creator,colede/qtcreator,malikcjm/qtcreator,malikcjm/qtcreator,Distrotech/qtcreator,duythanhphan/qt-creator,maui-packages/qt-creator,kuba1/qtcreator,amyvmiwei/qt-creator,malikcjm/qtcreator,kuba1/qtcreator,farseerri/git_code,maui-packages/qt-creator,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,AltarBeastiful/qt-creator,colede/qtcreator,AltarBeastiful/qt-creator,maui-packages/qt-creator,amyvmiwei/qt-creator,darksylinc/qt-creator,danimo/qt-creator,richardmg/qtcreator,danimo/qt-creator,xianian/qt-creator,malikcjm/qtcreator,farseerri/git_code,darksylinc/qt-creator,malikcjm/qtcreator,darksylinc/qt-creator,amyvmiwei/qt-creator,maui-packages/qt-creator,AltarBeastiful/qt-creator,darksylinc/qt-creator,maui-packages/qt-creator,xianian/qt-creator,martyone/sailfish-qtcreator,richardmg/qtcreator,danimo/qt-creator,Distrotech/qtcreator,darksylinc/qt-creator,omniacreator/qtcreator,farseerri/git_code,darksylinc/qt-creator,darksylinc/qt-creator,duythanhphan/qt-creator,duythanhphan/qt-creator,AltarBeastiful/qt-creator,richardmg/qtcreator,amyvmiwei/qt-creator,xianian/qt-creator,xianian/qt-creator,martyone/sailfish-qtcreator,amyvmiwei/qt-creator,duythanhphan/qt-creator