man/*.1 : Conver from man to mdoc markup language.

These files were converted to mdoc by Jan Stary <hans@stare.cz>.
man/sndfile-cmp.1 : Improve explanation. Add exist status info.

Input-from: Jan Stary <hans@stare.cz>
man/sndfile-convert.1 : Reformatting.

Patch-from: Jan Stary <hans@stare.cz>
programs/sndfile-convert.c : Clean up --help output.

Patch-from: Jan Stary <hans@stare.cz>
man/sndfile-interleave.1 : Improvements including exit status and examples.

Patch-from: Jan Stary <hans@stare.cz>
man/sndfile-info.1 : Document command line options.

Patch-from: Jan Stary <hans@stare.cz>
man/sndfile-play.1 : Improvements.

Input-from: Jan Stary <hans@stare.cz>
man/sndfile-concat.1 : Improvements, including addition of exit status.

Patch-from: Jan Stary <hans@stare.cz>
man/sndfile-salvage.1 : New manpage file.

Submitted-by: Jan Stary <hans@stare.cz>
Tweaked-by: Erik de Castro Lopo <erikd@mega-nerd.com>
programs/*.c : Clean up and normailize printing of version strings.

Suggested-by: Jan Stary <hans@stare.cz>
programs/sndfile-metadata-*.c : Minor cleanup.

Patch-from: Jan Stary <hans@stare.cz>
man/sndfile-metadata-get.1 : Improvements.
man/ : More manpage tweaks.

* EXIT STATUS for all
* Mention that the output gets overwritten without asking
* Remove some whitespace mandoc complains about

Patch-from: Jan Stary <hans@stare.cz>
programs/sndfile-metadata-get.c : Make --all the default behaviour.

If given a file name without any options, just behave as if it had
been given the --all option.

Suggested-by: Jan Stary <hans@stare.cz>
programs/sndfile-cmp.c : Fix up exit status.

Patch-from: Jan Stary <hans@stare.cz>
programs/*.c : More exit code fixes.

Patch-from: Jan Stary <hans@stare.cz>
tests/write_read_test.tpl : Rename 'long_file_okz' -> 'long_file_ok'.
tests/(floating_point|scale_clip)_test.def : Quote hex literals.

Versions of autogen before 5.18.1 accepted bare hexadecimal literals
but later versions need those hex literals quoted. See:

    https://sourceforge.net/p/autogen/bugs/162/
Reorder file format lists to be the same as sndfile.h and api.html

* Reorders the list of recognized file formats and their filename
  extensions and aliases in programs/common.c's format_map[] and in
  sndfile-convert.1 so that the list is in the same order as in
  sndfile.h and api.html

* Adds more types that we know but format_map[] didn't use, namely
  AVR and WAVEX

* Add more filename extension aliases, insipred by those recognized
  by SoX, namely "sph" for NIST and "prc" for WVE.

Patch-from: Jan Stary <hans@stare.cz>
programs/sndfile-convert.c : Add warning for some conversions.

Specifically when converting to GSM 6.10 when the input samplerate
is not 8kHz no resampling will be done so when the file is played
it will simply sound like the original input file played at the
new sample rate.

Suggested-by: Jan Stary <hans@stare.cz>