[mythtv] Bug in updateForeground

[Paul Volkaerts]

A change in 0.15 in file mythdialogs.cpp; updateForeground, checks ...

if (r.width() == 0 || r.height() == 0)


This causes a problem with the UIRepeatedImageType if the first call to
setRepeat is zero, as it causes the geometry to be zero  (since the geometry
is image_size * highest_repeat and highest_repeat can be zero).


Its a minor issue and I don't know who owns this code but thought worth
mentioning.

Paul