obslog: make {patch} not be indented and leave that to the template
This removes some unwanted indentation from the tests. In the first
case, it's because indent() doesn't indent a blank line. In the second
case, it's because we used templating with {patch} and had not
requested indentation (but we still got it before this patch).
Note that tests will only pass with a very recent Mercurial (one with
https://phab.mercurial-scm.org/D7432 applied).
syntax: re
/figures/[^/]+\.png$
^html/
\.pyc$
~$
\.swp$
\.orig$
\.rej$
^tests/.*\.err$
^tests/easy_run.sh$
^build/
^dist/
^MANIFEST$
^docs/tutorials/.*\.rst$
\.ico$
tests/\.testtimes
^docs/training/graphs/
^docs/training/html/
^docs/training/index.html
^docs/training/graphviz-images/
^docs/training/img/
^docs/training/output/
^docs/training/pandocfilters/