lfs: don't automatically exclude '.hg*' files from external tracking
The only reasons I did this in the first place was because tracking externally
seems like it would always be a mistake, and the eol extension does the same
thing. Yuya and Jun thought it might be better to not do this[1], so I'll defer
to them on this. If a problem with say, .hgtags or .hgeol does arise, it can be
added back without breaking existing repos.
[1] https://www.mercurial-scm.org/pipermail/mercurial-devel/2018-January/110371.html
$ hg init
$ echo a > a
$ hg ci -Am0
adding a
$ hg -q clone . foo
$ touch .hg/store/journal
$ echo foo > a
$ hg ci -Am0
abort: abandoned transaction found!
(run 'hg recover' to clean up transaction)
[255]
$ hg recover
rolling back interrupted transaction
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 1 changesets, 1 total revisions
Check that zero-size journals are correctly aborted:
#if unix-permissions no-root
$ hg bundle -qa repo.hg
$ chmod -w foo/.hg/store/00changelog.i
$ hg -R foo unbundle repo.hg
adding changesets
abort: Permission denied: $TESTTMP/foo/.hg/store/.00changelog.i-* (glob)
[255]
$ if test -f foo/.hg/store/journal; then echo 'journal exists :-('; fi
#endif