fix typo causing a "os" is not defined test error.

diff --git a/pym/portage/util/movefile.py b/pym/portage/util/movefile.py
index 4f158cd00a08e3b8d1f93c915b0e58d8adc886cb..452e77f0d8d8bab7de2df1d51a48cff6830f0fea 100644 (file)
--- a/pym/portage/util/movefile.py
+++ b/pym/portage/util/movefile.py
@@ -129,7 +129,7 @@ else:
                                                (_unicode_decode(dest), _unicode_decode(attr)))
        else:
                try:
-                       with open(os.devnull, 'wb') as f:
+                       with open(_os.devnull, 'wb') as f:
                                subprocess.call(["getfattr", "--version"], stdout=f)
                                subprocess.call(["setfattr", "--version"], stdout=f)
                except OSError: