Set default shell to /bin/sh for ldap users

Change the default shell of ldap users to /bin/sh to make it consistent
with local users.

Tested:
* `getent.ldap passwd` shows the default shell is /bin/sh

Change-Id: I3f8071172e20be54c46df2717e005c25f9da19a1
Signed-off-by: Jiaqing Zhao <jiaqing.zhao@intel.com>
1 file changed