parallel_emerge: Ignore unpacking-non-sequence linter warning.

BUG=brillo:918
TEST=upload hooks stop failing.

Change-Id: I34e1df031b8c5463bb4453c46b44d6ce80120bf4
Reviewed-on: https://chromium-review.googlesource.com/272941
Commit-Queue: Gilad Arnold <garnold@chromium.org>
Trybot-Ready: Gilad Arnold <garnold@chromium.org>
Tested-by: Gilad Arnold <garnold@chromium.org>
Reviewed-by: David James <davidjames@chromium.org>
diff --git a/scripts/parallel_emerge.py b/scripts/parallel_emerge.py
index a5da2c7..176ef34 100644
--- a/scripts/parallel_emerge.py
+++ b/scripts/parallel_emerge.py
@@ -335,6 +335,7 @@
 
     # Now that we've setup the necessary environment variables, we can load the
     # emerge config from disk.
+    # pylint: disable=unpacking-non-sequence
     settings, trees, mtimedb = load_emerge_config()
 
     # Add in EMERGE_DEFAULT_OPTS, if specified.
@@ -359,6 +360,7 @@
     # use that function here.
     if _global_updates(trees, mtimedb["updates"]):
       mtimedb.commit()
+      # pylint: disable=unpacking-non-sequence
       settings, trees, mtimedb = load_emerge_config(trees=trees)
 
     # Setup implied options. Portage normally handles this logic in