Revert "linux-container: Correct test for unprivileged user namespace support."

This broke 'guix environment --container' on non-Debian distributions.
Fixes <https://bugs.gnu.org/45066>.  Reported by luhux <luhux@outlook.com>.

This reverts commit 8bc5ca5160.
This commit is contained in:
Marius Bakke 2020-12-06 21:55:18 +01:00
parent 3f35b09e8d
commit 329fa5bdbb
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@ -44,7 +44,7 @@ (define (unprivileged-user-namespace-supported?)
(let ((userns-file "/proc/sys/kernel/unprivileged_userns_clone"))
(if (file-exists? userns-file)
(eqv? #\1 (call-with-input-file userns-file read-char))
#f)))
#t)))
(define (setgroups-supported?)
"Return #t if the setgroups proc file, introduced in Linux-libre 3.19,