cosmetic

git-svn-id: https://svn.r-project.org/ESS/trunk@5453 0bbaf3bd-34e0-0310-bf65-c717079852d4
rely on R's eval(parse to get function object inside .ess.funnargs function

git-svn-id: https://svn.r-project.org/ESS/trunk@5454 0bbaf3bd-34e0-0310-bf65-c717079852d4