Fix example test failures.

git-svn-id: https://svn.salilab.org/imp/trunk@17387 e91f8c7b-0e32-4433-a9ac-4502d39a4eab
don't put arguments that might disappear in quotes

git-svn-id: https://svn.salilab.org/imp/trunk@17389 e91f8c7b-0e32-4433-a9ac-4502d39a4eab