Remove external *less programs/manpages.

* Point {xz,bz,...}less manual pages at less(1) since all compressed
less is handled by its own lessopen.sh support.

* Stop installing external {lz,xz,zst

Remove external *less programs/manpages.

* Point {xz,bz,...}less manual pages at less(1) since all compressed
less is handled by its own lessopen.sh support.

* Stop installing external {lz,xz,zstd,z}less programs and manual pages.

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Initial import of binutils 2.22 on the new vendor branch

Future versions of binutils will also reside on this branch rather
than continuing to create new binutils branches for each new version.

zmore: Fix incorrect test

DragonFly test(1) (aka [) doesn't support `X == Y' (unlike e.g. bash),
this applies to both sh(1) buildin and stand alone.

Update gzip.

- gzexe: Ensure we do not compress files we need for decompressing by
also checking hard links. From Andrew Dalgleish. (from OpenBSD)
- note that -n also stops the timestamp from being

Update gzip.

- gzexe: Ensure we do not compress files we need for decompressing by
also checking hard links. From Andrew Dalgleish. (from OpenBSD)
- note that -n also stops the timestamp from being output.
- Don't abort decompression if there are no bytes in the output buffer
when the end of compressed block (ie the crc) is reached.
(ie when decompressing concatenated zipped files).
- If stdin is the input stream, fstat it and check if it's
file. If so, use it's mtime for the mtime in the header. Otherwise use
time(2)'s result instead. Lines up with GNU gzip and RFC 1952 now as
well.
- Fix parsing of $GZIP so that not to overrun the end of string.
- handle partial reads.
- avoid an infinite loop while decompressing invalid gzip files.
- in file_compress() always stat() the input file. this patch avoids
reading from uninitialised space.
- Fix a few issues:
gzip -vt just prints the contents of a .Z file
gzip -vt will print OK even if the .gz file is corrupt
gzip -vt prints nothing with a .bz2 file
gzip can loop endlessly with a corrupt .bz2 file
- Don't warn about >4GB files not having their size correctly stored.
- Remove unhandled H option from getopt() argument. Describe -l in usage.
- properly check the return value of read() & pread().
- Delete impossible code.
- Abort decompression with an error when EOF is reached on input. The
test output will then be 'NOT OK'.
- End a decompression when trailing garbage is found. It emits a warning
message and causes a non-zero exit status (similar to GNU gzip).
- properly detect when the output fails (eg, full filesystem) and do not
delete the input file.

Dragonfly-bug: http://bugs.dragonflybsd.org/issue1026

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Add gzip based on libz. This is faster for decompression and yields
better compression than GNU gzip (300 KB for the plan9 ISO image).

The optional support for decompression of compress and bzip2 is

Add gzip based on libz. This is faster for decompression and yields
better compression than GNU gzip (300 KB for the plan9 ISO image).

The optional support for decompression of compress and bzip2 is disabled,
the normal frontends should be used instead. They can be activated by
setting GZIP_UNCOMPRESS and GZIP_UNBZIP2 respectively.

The only missing features from GNU gzip are the omission of zip support
(it could only handle the first entry anyway) and unpack support.

This differs from the NetBSD version in that all compile time warnings
has been fixed.

Obtained-from: NetBSD

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