change-log-time-zone-rule is non-nil, instead of traditional Unix date
format.
(datearg): When computing default from ChangeLog, handle ISO format dates
in addition to old-fashioned dates from Emacs 19.31 and earlier. Don't
worry about hh:mm:ss since the resolution is now by day. Use emtpy
datearg, not empty rlog_options, to decide whether to pass "$datearg"
option to $rlog.
(logTZ): New variable, set to TZ specified by change-log-time-zone-rule.
(month_data): Remove `mo'; no longer needed.
(rlog_options): Use -zLT for localltime output, if `rlog' supports it.
(extractTZ): Use UTC if the zone is t.
Match `revision' line of rlog output more accurately.
Add -c, -v options.
(now obsolescent) -n login fullname mailaddr option.
Don't omit path from repository root when logging CVS files.
Add -R option for recursive rlog.
(AWK): New environment variable (default `awk') for name of awk program.
(output_authors, tab, loginFullnameMailaddrs, recursive): New variables.
Quote authors and fullnames correctly.
it to /[\/]/. This should work on all Posix-compliant awks.
It's slightly wrong with traditional (Unix version 7) awk, since it
also allows \, but that's a minor problem compared to awk syntax errors.
Unfortunately this requires putting a carriage return in the source code.
Don't assume that rlog will tolerate times like `10:10:60';
RCS 5.7 won't allow this.
