dirstate-tracked-key: update the config value to match latest discussion Special cases are not special enough, we align the option name on the other. The `version` value is undocumented for now as it can only have a single value. It is supported in the code to properly detect and abort if more value are introduced in the future value. Differential Revision: https://phab.mercurial-scm.org/D12184

#require clang-format test-repo

  $ . "$TESTDIR/helpers-testrepo.sh"

  $ cd "$TESTDIR"/..
  $ for f in `testrepohg files 'set:(**.c or **.cc or **.h) and not "listfile:contrib/clang-format-ignorelist"'` ; do
  >   clang-format --style file $f > $f.formatted
  >   cmp $f $f.formatted || diff -u $f $f.formatted
  >   rm $f.formatted
  > done