Gbp-Dch: Ignore

Gbp-Dch: Ignore

Closes: #1008952

Gbp-Dch: Ignore

Gbp-Dch: Ignore

Gbp-Dch: Ignore

Gbp-Dch: Ignore

Update to upstream version '3.7'
with Debian dir 445771493588e522191e7fc6a433e2bacf7adff0

* NEWS: Record release date.

...so we can continue to use seq, but the wrapper when needed.
* tests/init.cfg (seq): Some systems lask seq.
Provide a replacement.
* tests/hash-collision-perf: Use seq once again.
* tests/long-pattern-perf: Likewise. And remove a comment about seq.

* src/dfasearch.c (EGexecute): Remove a label and goto.
This also makes the machine code a bit shorter, on x86-64 gcc.

* src/grep.c (fillbuf): Simplify movement of saved data.

* src/grep.c (ALIGN_TO): When converting pointers to unsigned
integers, convert to uintptr_t not size_t, as size_t in theory
might be too narrow.

Portability problem reported by Dagobert Michelsen in:
https://lists.gnu.org/r/grep-devel/2021-08/msg00004.html
* tests/hash-collision-perf, tests/long-pattern-perf:
Don’t assume seq is installed; use awk instead.

* src/grep.c (usage): Document --group-separator
and --no-group-separator.

* doc/grep.in.1:
Add copy of docs for --group-separator from doc/grep.texi.
Add copy of docs for --no-group-separator from doc/grep.texi.

* doc/grep.in.1 (-H): Mention that this is a GNU extension.

* doc/grep.texi (The Backslash Character and Special Expressions)
(Usage): Improve doc (Bug#48948).

* doc/grep.texi (-L): Remove erroneous sentence about stopping early.
With -L, grep cannot stop scanning early.
(-l): Tweak existing wording.
* doc/grep.in.1: Remove the -L sentence here, too.
(-l): Copy the sentence from grep.texi, to clarify: it's only per-file
scanning that stops upon match.  Reported by Robert Bruntz
in http://debbugs.gnu.org/46179

* configure.ac (GNULIB_TEST_WARN_CFLAGS): Add
-Woverlength-strings to avoid clang warnings.

* doc/grep.texi (Fundamental Structure)
(Back-references and Subexpressions, Basic vs Extended):
Further clarifications.

* gnulib: update for clang-10 warning warning-avoidance
fixes in hash and regex-tests.

* src/dfasearch.c (regex_compile): Parenthesize arith-OR vs
ternary, to placate clang-10.

* doc/grep.texi (Fundamental Structure)
(Character Classes and Bracket Expressions)
(The Backslash Character and Special Expressions, Anchoring)
(Basic vs Extended): Clarify which characters are special,
and why \ is needed before } in grep even though } is not special.
Use Posix terminology for ordinary and special characters and for
interval expressions.

* doc/grep.texi (Basic vs Extended Regular Expressions): Mention that
the right curly brace (}) meta-character must be backslash-escaped.
It had been omitted from the list.

* NEWS (Change in behavior): Mention this.
* src/grep.c (main): Warn about each use of obsolete
--unix-byte-offsets (-u).
* doc/grep.in.1 (-u): Remove its documentation.