revlog: change _addrevision to return the new revision
The node is passed as argument already, so returning it is quite
pointless. The revision number on the other is useful as it decouples
the caller from the revlog internals.
Differential Revision: https://phab.mercurial-scm.org/D9880
# See http://EditorConfig.org for the specification
root = true
[*.py]
indent_size = 4
indent_style = space
trim_trailing_whitespace = true
end_of_line = lf
[*.{c,h}]
indent_size = 8
indent_style = tab
trim_trailing_whitespace = true
end_of_line = lf
[*.t]
indent_size = 2
indent_style = space
trim_trailing_whitespace = false
end_of_line = lf