Gdb engine: Fixed error message.
Gdb engine: Fixed error message.

Reviewed-by: hjk

danimo/qt-creator,richardmg/qtcreator,KDE/android-qt-creator,syntheticpp/qt-creator,renatofilho/QtCreator,pcacjr/qt-creator,farseerri/git_code,jonnor/qt-creator,duythanhphan/qt-creator,hdweiss/qt-creator-visualizer,malikcjm/qtcreator,jonnor/qt-creator,darksylinc/qt-creator,enricoros/k-qt-creator-inspector,azat/qtcreator,duythanhphan/qt-creator,Distrotech/qtcreator,renatofilho/QtCreator,xianian/qt-creator,azat/qtcreator,enricoros/k-qt-creator-inspector,malikcjm/qtcreator,bakaiadam/collaborative_qt_creator,KDAB/KDAB-Creator,syntheticpp/qt-creator,farseerri/git_code,syntheticpp/qt-creator,amyvmiwei/qt-creator,danimo/qt-creator,martyone/sailfish-qtcreator,azat/qtcreator,yinyunqiao/qtcreator,KDE/android-qt-creator,richardmg/qtcreator,syntheticpp/qt-creator,bakaiadam/collaborative_qt_creator,ostash/qt-creator-i18n-uk,malikcjm/qtcreator,enricoros/k-qt-creator-inspector,syntheticpp/qt-creator,martyone/sailfish-qtcreator,darksylinc/qt-creator,farseerri/git_code,KDE/android-qt-creator,Distrotech/qtcreator,darksylinc/qt-creator,pcacjr/qt-creator,malikcjm/qtcreator,yinyunqiao/qtcreator,KDE/android-qt-creator,ostash/qt-creator-i18n-uk,azat/qtcreator,jonnor/qt-creator,bakaiadam/collaborative_qt_creator,omniacreator/qtcreator,danimo/qt-creator,martyone/sailfish-qtcreator,bakaiadam/collaborative_qt_creator,danimo/qt-creator,richardmg/qtcreator,AltarBeastiful/qt-creator,bakaiadam/collaborative_qt_creator,AltarBeastiful/qt-creator,Distrotech/qtcreator,darksylinc/qt-creator,colede/qtcreator,xianian/qt-creator,danimo/qt-creator,maui-packages/qt-creator,amyvmiwei/qt-creator,darksylinc/qt-creator,omniacreator/qtcreator,KDAB/KDAB-Creator,hdweiss/qt-creator-visualizer,omniacreator/qtcreator,kuba1/qtcreator,kuba1/qtcreator,farseerri/git_code,amyvmiwei/qt-creator,amyvmiwei/qt-creator,KDAB/KDAB-Creator,yinyunqiao/qtcreator,colede/qtcreator,hdweiss/qt-creator-visualizer,ostash/qt-creator-i18n-uk,syntheticpp/qt-creator,KDE/android-qt-creator,xianian/qt-creator,AltarBeastiful/qt-creator,AltarBeastiful/qt-creator,colede/qtcreator,darksylinc/qt-creator,KDE/android-qt-creator,AltarBeastiful/qt-creator,martyone/sailfish-qtcreator,jonnor/qt-creator,renatofilho/QtCreator,duythanhphan/qt-creator,kuba1/qtcreator,ostash/qt-creator-i18n-uk,sandsmark/qtcreator-minimap,martyone/sailfish-qtcreator,xianian/qt-creator,Distrotech/qtcreator,xianian/qt-creator,AltarBeastiful/qt-creator,farseerri/git_code,yinyunqiao/qtcreator,kuba1/qtcreator,KDAB/KDAB-Creator,danimo/qt-creator,jonnor/qt-creator,xianian/qt-creator,maui-packages/qt-creator,renatofilho/QtCreator,sandsmark/qtcreator-minimap,dmik/qt-creator-os2,yinyunqiao/qtcreator,dmik/qt-creator-os2,kuba1/qtcreator,hdweiss/qt-creator-visualizer,martyone/sailfish-qtcreator,maui-packages/qt-creator,Distrotech/qtcreator,yinyunqiao/qtcreator,ostash/qt-creator-i18n-uk,enricoros/k-qt-creator-inspector,maui-packages/qt-creator,maui-packages/qt-creator,duythanhphan/qt-creator,dmik/qt-creator-os2,amyvmiwei/qt-creator,darksylinc/qt-creator,farseerri/git_code,KDAB/KDAB-Creator,dmik/qt-creator-os2,kuba1/qtcreator,colede/qtcreator,sandsmark/qtcreator-minimap,danimo/qt-creator,dmik/qt-creator-os2,syntheticpp/qt-creator,AltarBeastiful/qt-creator,amyvmiwei/qt-creator,danimo/qt-creator,pcacjr/qt-creator,omniacreator/qtcreator,malikcjm/qtcreator,sandsmark/qtcreator-minimap,enricoros/k-qt-creator-inspector,bakaiadam/collaborative_qt_creator,ostash/qt-creator-i18n-uk,amyvmiwei/qt-creator,azat/qtcreator,enricoros/k-qt-creator-inspector,danimo/qt-creator,KDE/android-qt-creator,malikcjm/qtcreator,maui-packages/qt-creator,richardmg/qtcreator,renatofilho/QtCreator,kuba1/qtcreator,KDE/android-qt-creator,xianian/qt-creator,sandsmark/qtcreator-minimap,darksylinc/qt-creator,KDAB/KDAB-Creator,richardmg/qtcreator,malikcjm/qtcreator,xianian/qt-creator,Distrotech/qtcreator,colede/qtcreator,kuba1/qtcreator,colede/qtcreator,martyone/sailfish-qtcreator,pcacjr/qt-creator,azat/qtcreator,ostash/qt-creator-i18n-uk,maui-packages/qt-creator,duythanhphan/qt-creator,bakaiadam/collaborative_qt_creator,martyone/sailfish-qtcreator,colede/qtcreator,martyone/sailfish-qtcreator,duythanhphan/qt-creator,jonnor/qt-creator,renatofilho/QtCreator,hdweiss/qt-creator-visualizer,pcacjr/qt-creator,omniacreator/qtcreator,omniacreator/qtcreator,richardmg/qtcreator,farseerri/git_code,pcacjr/qt-creator,dmik/qt-creator-os2,xianian/qt-creator,enricoros/k-qt-creator-inspector,dmik/qt-creator-os2,richardmg/qtcreator,AltarBeastiful/qt-creator,kuba1/qtcreator,omniacreator/qtcreator,yinyunqiao/qtcreator,Distrotech/qtcreator,farseerri/git_code,hdweiss/qt-creator-visualizer,sandsmark/qtcreator-minimap,duythanhphan/qt-creator,pcacjr/qt-creator,amyvmiwei/qt-creator