bash uses POSIX extended regular expressions via regex(3), which does
not guarantee support for shorthand character classes. Although glibc
supports it, msys2-runtime does not.
Make sure the completion script works (hopefully) everywhere by being
more portable.
Fixes: https://github.com/msys2/MSYS2-packages/pull/1549
Original-patch-by: plotasse <platos@protonmail.ch>
Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>
cd475331f4