master updated (8c68a15 -> 0c86f55)

[Paul Eggert]

eggert pushed a change to branch master.

      from  8c68a15   Allow overriding read--expression-try-read bindings
       new  846657a   Update from Gnulib
       new  0c86f55   Simplify format_time_string


Summary of changes:
 lib/c++defs.h           |  10 +++
 lib/canonicalize-lgpl.c |   4 +-
 lib/cdefs.h             |   7 ++-
 lib/dup2.c              |   4 +-
 lib/fcntl.in.h          |  18 ++++++
 lib/getopt-cdefs.in.h   |   2 +-
 lib/gnulib.mk.in        |   4 +-
 lib/intprops.h          |   2 +-
 lib/md5.h               |   2 +-
 lib/mktime.c            |   2 +-
 lib/nstrftime.c         |  22 +++++--
 lib/open.c              |   4 ++
 lib/regcomp.c           |   2 +-
 lib/regex_internal.h    |   2 +-
 lib/stdio.in.h          |  46 +++++++++++++-
 lib/stdlib.in.h         |  29 +++++++++
 lib/strftime.h          |   7 ++-
 lib/string.in.h         |  15 +++++
 lib/sys_select.in.h     |   6 +-
 lib/sys_stat.in.h       |  14 +++++
 lib/sys_time.in.h       |   2 +-
 lib/time.in.h           |  12 +++-
 lib/time_rz.c           |  51 ++++++----------
 lib/unistd.in.h         | 159 ++++++++++++++++++++++++++++++++++++++++++++++++
 lib/verify.h            |  23 +++++--
 m4/00gnulib.m4          |  38 +-----------
 m4/absolute-header.m4   |  10 ++-
 m4/alloca.m4            |   4 +-
 m4/canonicalize.m4      |  14 ++++-
 m4/dup2.m4              |   3 +-
 m4/fchmodat.m4          |   4 +-
 m4/fcntl.m4             |   3 +-
 m4/fdopendir.m4         |  20 +++---
 m4/fpending.m4          |   4 +-
 m4/futimens.m4          |   5 +-
 m4/getdtablesize.m4     |  19 +++---
 m4/getloadavg.m4        |   4 +-
 m4/gnulib-common.m4     |  82 +++++++++++++++++++++----
 m4/include_next.m4      |  18 +++---
 m4/largefile.m4         |   6 +-
 m4/manywarnings.m4      |   8 +--
 m4/mktime.m4            |   8 +--
 m4/nstrftime.m4         |   4 +-
 m4/open-slash.m4        |   3 +-
 m4/pselect.m4           |   5 +-
 m4/pthread_sigmask.m4   |   3 +-
 m4/time_h.m4            |   1 -
 m4/utimens.m4           |   5 +-
 m4/utimensat.m4         |   5 +-
 m4/utimes.m4            |   3 +-
 m4/warnings.m4          |  21 +++----
 src/timefns.c           |  33 +++++-----
 52 files changed, 562 insertions(+), 220 deletions(-)