cleanup: fix some list comprehension redefinitions of existing vars
In all the remaining cases the comprehension variable is used for the same
thing as a previous loop variable.
This will mute some pyflakes "list comprehension redefines" warnings.
workingfilectx.date = (1000, 0)
ASCII : Gr?ezi!
Latin-1 : Grüezi!
UTF-8 : Grüezi!
(['foo'], [], [], [], [], [], [])
diff --git a/foo b/foo
--- a/foo
+++ b/foo
@@ -1,1 +1,2 @@
foo
+bar