c.f. 31531: complete xcf files for image manipulation packages
31545: Use of FD_CLOEXEC to remove possibility of fd reuse.
File descriptors of mmap'd dump files are closed if and only if
an exec is performed.
31549: Fix third problem with file descriptor management.
Replace ad-hoc subsh_close file descriptor for pipe management with the new
job-based addfilelist() mechanism.
31558: name of qemu executable changed in completion.
31559: Fix history line problem with aliases and comments
unposted: fix previous commit: ihwend -> hwend
31750: fix for HISTREDUCEBLANKS option.
Don't truncate line after marked words if there's more
non-white-space text, which is probably comments.
31571: Completion/Unix/Command/_vcsh: Update
31572: Completion/Debian/Command/_linda: Deleted
31574: alternative fix for bad fd if no FD_CLOEXEC.
Remove dump records more consistently in that case.
31756: further make completion improvements.
ake care of mutually exclusive options.
Add _description using $state_descr.
Add completions for --debug=flag.
Fix typo (pointed out by Daniel Shahaf).
31592: improve documentary for handling of named directories.
Minor changes of phrasing.
17591: fix error message for invalid fd in print -u
mplayer supports .ts (transport stream) files
31611: attempt to fix crash completing redirection in do loop
suppress stderr when listing java classes to complete
31631: Use cygwin_conv_path if available.
Prefer it to cygwin_conv_to_posix_path.
31634: run-help compat with alias to noglob/nocorrect

Given `alias fetch='noglob fetch'`, without this change `run-help fetch`
recurses to invoke itself on the noglob command, bringing up the help
for noglob.  Similarly for nocorrect.  Thus the user would have to quit
out of the pager, then avoid quitting out of the loop, so that they can
go into the second iteration and see the help for the second instance
found by `whence -a`, which happens to be the target of the alias.
With common pagers, that's thus 'q', 'not-q'.  Somewhat frustrating.

Without this change, `alias foo='noglob bar'` where `foo` is not
otherwise a command would _never_ show the help for `bar`, since it only
showed the help for `noglob` and there was no second line of whence
output to trigger the second pass.

With this change, aliases to `noglob|nocorrect` of a command somewhat
ignore the presence of that precommand modifier; if a command is aliased
to `noglob $itself`, then the result is that the first line of whence
output is shown, no pager is used, the user can immediately see a prompt
to continue and press something other-than-q to see the help for the
command.

If given `alias foo='noglob bar'` then `run-help foo` will immediately
show the help for bar.

This behaviour was chosen to be consistent with the existing alias
support, but just working better with the precommand modifier.
users/17908: Keep history line in sync between ZLE and shell.
Update ZLE version if history is read, pushed or popped with ZLE active
31644: Fix insertion of multibyte characters into editor line.
This was broken for a string that came from outside ZLE in the case
where the editing buffer wasn't metafied, i.e. not in completion.