Alexis S. L. Carvalho <alexis@cecm.usp.br> [Sat, 14 Oct 2006 18:47:48 -0300] rev 3390
make revlog.addgroup pass its file handles to addrevision
This should fix issue255.
It looks like the problem there happens when addgroup calls addrevision
to add a full revision, and addrevision decides to split the index file
into a .i/.d pair. Since addgroup has an open file handle for the
index file, the renaming of the new .i file to its final name fails on
windows.