templatespec: logcmdutil.templatespec() gets either template or mapfile
The callers of the function already never pass (non-`None`) values for
both, so let's check that and call the new factory functions.
Differential Revision: https://phab.mercurial-scm.org/D8846
# 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
[*.t]
indent_size = 2
indent_style = space
trim_trailing_whitespace = false