revlog: refactor logic to compute nodemap file in separate function
I will like to use it one more place.
Differential Revision: https://phab.mercurial-scm.org/D9933
# See http://EditorConfig.org for the specification
root = true
[*.py]
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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]
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end_of_line = lf