rename path_auditor to pathauditor The Mercurial 1.9 release is moving a lot of stuff around anyway and we are already moving path_auditor from util.py to scmutil.py for that release. So this seems like a good opportunity to do such a rename. It also strengthens the current project policy to avoid underbars in names.

revlog: use real Booleans instead of 0/1 in nodesbetween

patch: fix clash between local variable and exception instance The local err variable would be bound to PatchError thrown and it keeps this value even after the except block is executed. The whole thing worked anyway since the rejected variable is set in the except block and this makes the function return -1 when a PatchError is thrown.