[meld] Grandfather in some new flake8 violations

[Kai Willadsen <kaiw src gnome org>]

commit 44ce35d19ce2cc17939ff82a784b91a6c9c2bbbb
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sun May 17 08:56:59 2020 +1000

    Grandfather in some new flake8 violations
    
    These are all complaining about `l` being an ambiguous variable name.
    They should probably be fixed, but for now they can have exceptions.

 setup.cfg | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/setup.cfg b/setup.cfg
index b8af45aa..3f71628e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -5,7 +5,11 @@ exclude =
     build_helpers.py
 
 per-file-ignores =
-    maint:E501
+    maint:E501,E741
+    meld/dirdiff.py:E741
+    meld/vc/git.py:E741
+    meld/filediff.py:E741
+    meld/linkmap.py:E741
     meson_post_install.py:E501
     setup.py:E501
     setup_win32.py:E501