build: make install in "/doc" failed if the destination dir contained spaces This and the following commits try to add the necessary quoting in the build scripts to make the process more robust. The target for now is rendering "make deb" successful even when the base directory contains spaces (eg. "/opt/mercu rial"). The build process should succeed without scattering files in spurious directories (eg.: "/opt/mercu/usr/bin/hg").

strip: take branch into account when selecting update target (issue5540) Test contributed by Matt Harbison Keep the same behavior in most cases (i.e. first parent of the first root of stripped changsets), but if the branch differs from wdir's, try to find another parent of stripped commits that is on the same branch.