Add missing isShellUser check

Bug: 160390416
Test: verified command still works from shell
Change-Id: I23bb06e00f1623e4f27c02d7eb2c0d273b40771b
Merged-In: I23bb06e00f1623e4f27c02d7eb2c0d273b40771b
(cherry picked from commit bfdb7121ef7ae85520abbdcb4b9d05923d91999c)
1 file changed