sort: new --human-numeric-sort option to sort KiB MB etc.

* NEWS: Document the new option
* doc/coreutils.texi (sort invocation): ditto
* src/sort.c (main): handle the new --human-numeric-sort option (-h).
(human_numcompare): A new function to compare SI and IEC suffixes
before falling back to the standard --numeric comparison.
(find_unit_order): A new helper function to find the order
of magnitude of a number string as determined by its suffix.
(check_mixed_SI_IEC): A new helper function to exit with error
if both SI and IEC suffixes are presented.
* tests/misc/sort: Add 8 tests to test the new functionality.
* THANKS: Update

1 files changed, 1 insertions, 0 deletions

diff --git a/THANKS b/THANKS
index cf801c57a..4392f04fd 100644
--- a/THANKS
+++ b/THANKS
@@ -396,6 +396,7 @@ Michael J. Croghan                  mcroghan@usatoday.com
 Michael McFarland                   sidlon@yahoo.com
 Michael McLagan                     mmclagan@invlogic.com
 Michael Piefel                      piefel@informatik.hu-berlin.de
+Michael Speer                       knomenet@gmail.com
 Michael Steffens                    michael.steffens@s.netic.de
 Michael Stone                       mstone@debian.org
 Michael Stutz                       stutz@dsl.org