3839. [test] Use only posix-compatible shell in system tests. [RT #35625] (cherry picked from commit 60988462e5) (cherry picked from commit 812cf443bb) (cherry picked from commit 5409faef5e)
60988462e5
812cf443bb
5409faef5e
(cherry picked from commit 5f238c3c64)
5f238c3c64