[Bug other/102664] contrib/gcc-git-customization.sh uses echo -n, which isn't portable

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102664

--- Comment #17 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <redi@gcc.gnu.org>:

https://gcc.gnu.org/g:10ecf5182a0f63d79a44b953483ecfbb54d29bcb

commit r12-7536-g10ecf5182a0f63d79a44b953483ecfbb54d29bcb
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue Mar 8 16:44:17 2022 +0000

    contrib: Fix gcc-descr script [PR102664]

    POSIX expr does not support the 'match' keyword, so the git-descr.sh
    scripts should use ':' instead.

    contrib/ChangeLog:

            PR other/102664
            * git-descr.sh: Use portable form of expr match.