tests: configure fsmonitor.mode=paranoid always if fsmonitor is used
This forces fsmonitor extension execute "paranoid" code path.
Strict speaking, we should make fsmonitor-run-tests.py accept own
specific options, but there is no code path, which is disabled in
"paranoid" mode, at least now. Therefore, this solution seems
reasonable enough.
$ hg init repo
$ cd repo
$ touch foo
$ hg ci -Am 'add foo'
adding foo
$ hg up -C null
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
this should be stored as a delta against rev 0
$ echo foo bar baz > foo
$ hg ci -Am 'add foo again'
adding foo
created new head
$ hg debugindex foo
rev linkrev nodeid p1 p2
0 0 b80de5d13875 000000000000 000000000000
1 1 0376abec49b8 000000000000 000000000000
$ cd ..