src/usr.bin/less, branch release/9.3.0

MFC: less v458.

2013-05-30T20:40:16Z

Note that the manual page of less(1) says:

2012-12-17T06:35:15Z

Note that a preprocessor cannot output an empty file, since that is interpreted as meaning there is no replacement, and the origi- nal file is used. To avoid this, if LESSOPEN starts with two ver- tical bars, the exit status of the script becomes meaningful. If the exit status is zero, the output is considered to be replace- ment text, even if it empty. If the exit status is nonzero, any output is ignored and the original file is used. For compatibil- ity with previous versions of less, if LESSOPEN starts with only one vertical bar, the exit status of the preprocessor is ignored. Use two pipe symbols for zless, so that zless'ing a compressed empty file will give output rather than being interpreted as its compressed form, which is typically a binary. Thanks Mark Nudelman for pointing out this difference and the suggested solution. Reported by: Matthias Meyser PR: bin/168839

MFC: less v451.

2012-09-04T23:24:00Z

Regenerated with latest configure script.

2011-05-10T01:05:41Z

MFC after: 1 month

Import of liblzma, xz, xzdec, lzmainfo from vendor branch

2010-05-10T06:59:50Z

Add support for xz and lzma to lesspipe.sh (xzless, lzless) Bump __FreeBSD_version Approved by: delphij (mentor) MFC after: 2 weeks

Build usr.bin/ with WARNS=6 by default.

2010-01-02T10:27:05Z

Also add some missing $FreeBSD$ to keep svn happy.

Update less to v436. This is considered as a bugfix release from vendor.

2009-07-29T09:20:32Z

Major changes from v429: * Don't pass "-" to non-pipe LESSOPEN unless it starts with "-". * Allow a fraction as the argument to the -# (--shift) option. * Fix highlight bug when underlined/overstruck text matches at end of line. * Fix non-regex searches with ctrl-R. Approved by: re (kensmith, kib)

Resolve conflicts; Update defines.h to reflect latest change.

2007-11-16T22:24:31Z

Regen.

2007-06-04T01:43:25Z

Fix handling of filenames containing whitespace.

2007-05-24T18:28:08Z

PR: bin/112860 MFC in: 3 days