grep annotated tag, v3.1, created. v3.1

[Jim Meyering]

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The annotated tag, v3.1 has been created
        at  daae2009c76fa240d14d11837c71e82368b952e4 (tag)
   tagging  409e09e47c1506a2d517b4e2e14c3f69681b5eea (commit)
  replaces  v3.0
 tagged by  Jim Meyering
        on  Sun Jul 2 13:20:32 2017 -0700

- Log -----------------------------------------------------------------
grep 3.1
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Eric Blake (1):
      grep: don't forcefully strip carriage returns

Jim Meyering (17):
      maint: post-release administrivia
      maint: fix new syntax-check errors
      maint: fix distcheck failure: remove stale dosbuf.c reference
      build: use $(builddir), not $(srcdir)
      gnulib: update to latest for dfa [0-9] performance improvement
      gnulib: update to latest and adapt src/kwset.c
      maint: update to work with GCC7's -Werror=implicit-fallthrough=
      maint: accommodate GCC7's -Werror=duplicated-branches
      gnulib: update to latest; and update tests/init.sh
      maint: make the announcement template Cc the devel- list
      gnulib: update to latest
      doc: correct typo
      doc: stop calling --perl-regexp (-P) "highly" experimental
      doc: fix another typo
      gnulib: update to latest
      tests: avoid false failures when run in qemu user mode
      version 3.1

Juan Manuel Guerrero (1):
      build: use $(PATH_SEPARATOR), not ":" to augment PATH

Paul Eggert (8):
      doc: clarify default input (Bug#25651)
      Update TODO and doc
      Simplify -U on MS-Windows by removing guesswork
      build: update gnulib submodule to latest
      Fix up recent -U patches
      build: update gnulib submodule to latest
      Document grep performance
      grep: -m no longer cuts off trailing context

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