[openwrt/openwrt] scripts/dl_github_archieve.py: fix generating unreproducible tar

[LEDE Commits]

ansuel pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/5f1758ef14575df4e86896526b1c2035c231899e

commit 5f1758ef14575df4e86896526b1c2035c231899e
Author: Christian Marangi <ansuelsmth at gmail.com>
AuthorDate: Thu Jan 12 14:46:58 2023 +0100

    scripts/dl_github_archieve.py: fix generating unreproducible tar
    
    Allign dl_github_archieve.py to 8252511dc0b5a71e9e64b96f233a27ad73e28b7f
    change. On supported system the sigid bit is applied to files and tar
    archieve that on tar creation. This cause unreproducible tar for these
    system and these bit should be dropped to produce reproducible tar.
    
    Add the missing option following the command options used in other
    scripts.
    
    Fixes: 75ab064d2b38 ("build: download code from github using archive API")
    Suggested-by: Eneas U de Queiroz <cotequeiroz at gmail.com>
    Tested-by: Robert Marko <robimarko at gmail.com>
    Signed-off-by: Christian Marangi <ansuelsmth at gmail.com>
---
 scripts/dl_github_archive.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/dl_github_archive.py b/scripts/dl_github_archive.py
index b992227dc9..328d588e78 100755
--- a/scripts/dl_github_archive.py
+++ b/scripts/dl_github_archive.py
@@ -133,7 +133,7 @@ class Path(object):
     def tar(path, subdir, into=None, ts=None):
         """Pack ``path`` into tarball ``into``."""
         # --sort=name requires a recent build of GNU tar
-        args = ['tar', '--numeric-owner', '--owner=0', '--group=0', '--sort=name']
+        args = ['tar', '--numeric-owner', '--owner=0', '--group=0', '--sort=name', '--mode=a-s']
         args += ['-C', path, '-cf', into, subdir]
         envs = os.environ.copy()
         if ts is not None: