obsutil: prefetch method in allpredecessors loop
We don't expect a massive speedup from this, but the change was laying around
in my repository and it cannot hurt.
Added signature for changeset
a91a2837150b
Added tag 4.8 for changeset
a91a2837150b
beautifygraph: don't substitute anything for 'X' in rendered graphs
It looks like we never actually render graphs this way, although there's an
example in a comment next to the code that prevents it from being needed (see
graphmod.ascii()).
Differential Revision: https://phab.mercurial-scm.org/D5103
py3: convert revlog stats to a dict of (bytes, int) pairs
Py_DECREF(t) is replaced with Py_CLEAR(t) so that t is set to NULL once
decrefed. Otherwise, it would be excessively decrefed if a subsequent
PyBytes_FromString() failed.