compat: fix instabilities compat
We added an instabilities method for old version of Mercurial. But we returned
an old value for orphan changesets, the one before the big evolve renaming.
Fix the return value to match the new return values.
all: tutorials/tutorial.rst tutorials/topic-tutorial.rst static/logo-evolve.ico
sphinx-build . ../html/
tutorials/tutorial.rst: tutorials/tutorial.t
python test2rst.py tutorials/
tutorials/topic-tutorial.rst: tutorials/topic-tutorial.t
python test2rst.py tutorials/
static/logo-evolve.ico: static/logo-evolve.svg
convert -resize 36x36 static/logo-evolve.svg static/logo-evolve.ico