Ports/grep: Update grep to version 3.7

Author: https://github.com/EWouters
Commit: https://github.com/SerenityOS/serenity/commit/12b9bf826d
Pull-request: https://github.com/SerenityOS/serenity/pull/13395
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/timschumi

Ports/AvailablePorts.md

@@ -71,7 +71,7 @@ Please make sure to keep this list up to date when adding and updating ports. :^
 | [`gnupg`](gnupg/)                      | GnuPG                                                           | 2.3.0                    | https://gnupg.org/software/index.html                                          |
 | [`gnuplot`](gnuplot/)                  | Gnuplot                                                         | 5.2.8                    | http://www.gnuplot.info/                                                       |
 | [`gperf`](gperf/)                      | GNU gperf                                                       | 3.1                      | https://www.gnu.org/software/gperf/                                            |
-| [`grep`](grep/)                        | GNU Grep                                                        | 2.5.4                    | https://www.gnu.org/software/grep/                                             |
+| [`grep`](grep/)                        | GNU Grep                                                        | 3.7                      | https://www.gnu.org/software/grep/                                             |
 | [`griffon`](griffon/)                  | The Griffon Legend                                              | 1.0                      | https://www.scummvm.org/games/#games-griffon                                   |
 | [`gsl`](gsl/)                          | GNU Scientific Library                                          | 2.7                      | https://www.gnu.org/software/gsl/                                              |
 | [`halflife`](halflife/)                | Half-Life                                                       | 1.0.0                    | https://github.com/SerenityPorts/xash3d-fwgs                                   |

Ports/grep/package.sh

@@ -1,12 +1,11 @@
 #!/usr/bin/env -S bash ../.port_include.sh
 port=grep
-version=2.5.4
+version=3.7
 files="https://ftpmirror.gnu.org/gnu/grep/grep-${version}.tar.gz grep-${version}.tar.gz
 https://ftpmirror.gnu.org/gnu/grep/grep-${version}.tar.gz.sig grep-${version}.tar.gz.sig
 https://ftpmirror.gnu.org/gnu/gnu-keyring.gpg gnu-keyring.gpg"
 
 useconfigure=true
-use_fresh_config_sub=true
 configopts=("--disable-perl-regexp")
 auth_type="sig"
 auth_opts=("--keyring" "./gnu-keyring.gpg" "grep-${version}.tar.gz.sig")