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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug other/102664] contrib/gcc-git-customization.sh uses echo -n,
 which isn't portable
Date: Thu, 20 Jan 2022 12:47:12 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102664

--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> ---
https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Limita=
tions-of-Usual-Tools.html#index-g_t_0040command_007bexpr_007d-1813

The expr match regex should not start with ^ (that is implied anyway, and s=
ome
versions of expr don't like it)=