Change a few bash-specific constructs to more portable syntax specified by
POSIX. After the change the script keeps working with bash interpreter and
can also be interpreted by FreeBSD /bin/sh.
Signed-off-by: Andriy Gapon <avg@icyb.net.ua>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4964 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1