tests/narrow-library.sh

simplestorerepo: avoid shadowing dict in list comprehension over dict

Caught by pyflakes.

Differential Revision: https://phab.mercurial-scm.org/D3077

cat >> $HGRCPATH <<EOF
[extensions]
narrow=
[ui]
ssh=python "$TESTDIR/dummyssh"
[experimental]
changegroup3 = True
EOF