Description: Libtool wasn't working on linew because the script was
not working with the Solaris Bourne shell. Libtool has built-
in detection to ensure that it uses an appropriate shell,
but our config/commence.am was hard coding this shell to be
/bin/sh. Removing this line allows the shell to be picked up
by configure, thus allowing libtool to use the correct shell
on linew (bash). This was initially added to correct for a problem
on an old machine (janus), so shoudn't be needed for machines
we currently support.
Tested: full make check install on kagiso and linew, compile only
on smirom, duty, and liberty.