blackbox: add milliseconds to blackbox logs by default
The current second granularity is often not specific enough to
determine whether an hg command is happening before or after some
other event.
Given that starting a process takes on the order of 1ms (well, for
native processes. It's quite a bit more for python processes),
microseconds seems like unnecessary noise.
This also lines up behavior with the rust version, where we already
switched to millisecond precision.
Differential Revision: https://phab.mercurial-scm.org/D12005
Create an empty repo:
$ hg init a
$ cd a
Try some commands:
$ hg log
$ hg grep wah
[1]
$ hg manifest
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
checked 0 changesets with 0 changes to 0 files
Check the basic files created:
$ ls .hg
00changelog.i
cache
requires
store
wcache
Should be empty:
$ ls .hg/store
Poke at a clone:
$ cd ..
$ hg clone a b
updating to branch default
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd b
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
checked 0 changesets with 0 changes to 0 files
$ ls .hg
00changelog.i
cache
dirstate
hgrc
requires
store
wcache
Should be empty:
$ ls .hg/store
$ cd ..