[Qt-creator] maintenance tool

[Duane]

I hope this isn't off topic here as I thnk it's about the maintenance 
tool and not QtCreator directly.

I ran the maintenance tool to update Qt creator to the current version, 
then installed Qt 5.5.  Both seemed to run ok but now when I run the 
maintenance tool I get a dialog saying:

"Your installation seems to be corrupted.  Please consider re-installing 
from scratch"  When I click ok, it continues and seems to work.

Both QtCreator and Qt5.5 seem to have been installed.