.editorconfig

templatekw: use common "rev:node" format as the default of predecessors

I'm not sure if this is better. If we're planning to add a template keyword
that returns obsoleted nodes unavailable in the repo (i.e. they have no valid
revision numbers), we might want to use the current "node"-only format
everywhere.

# See http://EditorConfig.org for the specification

root = true

[*.py]
indent_size = 4
indent_style = space
trim_trailing_whitespace = true

[*.{c,h}]
indent_size = 8
indent_style = tab
trim_trailing_whitespace = true