make codecov less aggressive (python-telegram-bot#929)

Eldinnie · web-flow · commit 40113bb3ade0 · 2017-12-06T13:23:49.000+01:00
[CI skip]
diff --git a/codecov.yml b/codecov.yml
@@ -1,4 +1,4 @@
 comment:
   layout: "diff, files"
-  behavior: new
+  behavior: default
   require_changes: false
