The File::Find perl module assumes that the $_ variable remains unchanged
through the user defined function which is callbacked from find. It carries
out a stat operation
Simplest fix is merely to document this
the function is called. The function may set $File::Find::prune to
prune the tree.
+File::Find assumes that you don't alter the $_ variable. If you do then
+make sure you return it to its original value before exiting your function.
+
This library is primarily for the C<find2perl> tool, which when fed,
find2perl / -name .nfs\* -mtime +7 \