Impossible to ignore filenames containing digits

[Luni-4]

During the computation of code coverg for the burn project, it was not possible to completely ignore the examples directory because it contains the following file: examples/image-classification-web/src/model/squeezenet1.rs.

Ignoring the specific file, without using globs, did not work as well. After the file was renamed as squeezenet.rs, it was ignored.