tests/narrow-library.sh

tests: glob over some timing numbers in test-shelve.t

The Windows bot is slow enough that it was 2s in the first hunk.

Differential Revision: https://phab.mercurial-scm.org/D6663

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