requirements: Update yapf

AsnelChristian · AsnelChristian · commit a6597e8b0889 · 2016-08-25T18:34:55.000+01:00
diff --git a/requirements.txt b/requirements.txt
@@ -10,7 +10,7 @@ autoflake==0.6.*
 restructuredtext_lint==0.14.*
 proselint==0.3.*
 cpplint==1.*
-yapf==0.10.*
+yapf==0.11.*
 isort==4.*
 html-linter==0.3.*
 # Do *not* use 0.3 which is not backwards compatible to common clang versions
