chroot: fix gid being set by uid with --userspec #10307 #10465
+17
−2
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Fix: #10307
Instead of blindly taking the uid as gid we will parse it out of passwd instead.
I am not sure how to write a test in the by_util/chroot.rs file as i dont see any precedence of how to create a user so im not sure how i could set up a test of a user with a different gid to their uid, happy to take pointers how this could be done in the testing framework.