Fix call to os.path.abspath: the argument might already be a Path instance
Fix call to os.path.abspath: the argument might already be a Path instance

There's Path.absolute(), but it is not public, see https://bugs.python.org/issue25012.

The-Compiler/pytest,nicoddemus/pytest,tomviner/pytest,pytest-dev/pytest,The-Compiler/pytest,Akasurde/pytest,nicoddemus/pytest,hackebrot/pytest,alfredodeza/pytest,tomviner/pytest,RonnyPfannschmidt/pytest,markshao/pytest