though bash is included in lsb profile, busybox is still the default /bin/sh which is not desired. this causes some different error messages when run LTP test, such as: sh: /home/root/ltp/ltp/testcases/bin/su01_s1: not found when an unrecorgnized interpreter (/usr/bin/expect) is used
fixed by http://git.pokylinux.org/cgit/cgit.cgi/poky/commit/?id=ce9d6ebf34d7972021529c6270426c1760b967e5