It's not too common but there are instances where people have copied
.inc files into their own layer and modified them, and if you are using
such a layer that could result in unexpected behaviour. In order to get
a handle on when this is being done, collect data about all .inc files
and show duplicates in the Duplicates screen.
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
