dirstate: factor the identity setting code in the dirstate map
We need it in more locations, so let us start factoring thing out first
to make sure the same code is called everywhere.
This bears some similarity with 85746485a4dd on default, but at a smaller
scope and for a different purpose.
# 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