make: add new directory 'hgdemandimport' to cleanbutpackages rule
This fixes the build process for ppa (at least in my simple check).
Perhaps we should loop through all directory that aren't 'packages'?
--- a/Makefile Sat Jul 29 12:50:56 2017 -0700
+++ b/Makefile Sat Jul 29 19:12:48 2017 -0700
@@ -63,7 +63,7 @@
cleanbutpackages:
-$(PYTHON) setup.py clean --all # ignore errors from this command
- find contrib doc hgext hgext3rd i18n mercurial tests \
+ find contrib doc hgext hgext3rd i18n mercurial tests hgdemandimport \
\( -name '*.py[cdo]' -o -name '*.so' \) -exec rm -f '{}' ';'
rm -f MANIFEST MANIFEST.in hgext/__index__.py tests/*.err
rm -f mercurial/__modulepolicy__.py