ssl: refactor sslkwargs - move things around a bit, preparing for next change

revert: special case 'hg revert --all' On large repos, hg revert --all can take over 13 seconds. This is mainly due to it walking the tree three times: once to find the list of files in the dirstate, once to find the list of files in the target, and once to compute the status from the dirstate to the target. This optimizes the hg revert --all case to only require the final status. This speeds it up to 1.3 seconds or so (with hgwatchman enabled). Further optimizations could be done for the -r NODE and pattern cases, but they are significantly more complex.

test-commandserver: make runcommand message bolder It seems ' runcommand' is difficult to distinguish from command output. '*** runcommand' is slightly better.

test-commandserver: rewrite manual substitution of output by (glob) match

test-commandserver: remove redundant banner output Since test output was inlined, "testing <func>" message should no longer be necessary.

test-commandserver: remove .py test which was ported to .t

test-commandserver: port test functions from .py to .t Though we have to duplicate import statements, .t test is still more handy than .py test which has cryptic .out file. This change allows to skip a part of test by #if conditional, which my next patch series depends on.

test-commandserver: add stub for .t test by copying .out with 2-space indent Currently test-commandserver.t only contains output, so it is skipped by #require false.

test-commandserver: split helper functions to new hgclient module This prepares for porting test-commandserver.py to .t test. Though command-server test needs many Python codes, .t test will be more readable than .py test thanks to inlined output.

heredoctest: do not append extra newline character to continuation line Trailing newline characters are kept in lines.