1fd1b53018
It's not enough to check whether $! is set. From "perldoc perlvar": > Many system or library calls set "errno" if they fail, to > indicate the cause of failure. They usually do not set "errno" > to zero if they succeed and may set "errno" to a non-zero value > on success. This means "errno", hence $!, is meaningful only > *immediately* after a failure: To protect against potential issues, check the return value of unlink and only check $! if it failed. Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>