updpkgsums: retain permissions on rewritten PKGBUILD

This could have been easy with something like chown's --reference flag,
but this is GNU specific. Instead, just truncate and rewrite the file.
Our exit trap cleans up after us.

Fixes: https://bugs.archlinux.org/task/43272

Signed-off-by: Allan McRae <allan@archlinux.org>

0 files changed, 0 insertions, 0 deletions