Fix false positive from revdep-rebuild for scilab-5.4.1

The scilab-bin binary links against some Java libraries that are not
present in the regular path, hence resulting in revdep-rebuild reporting
them as missing. However these are false positive since the scilab
script sets the right path before invoking scilab-bin.
Merge pull request #125 from laomaiweng/scilab-revdep-rebuild

Fix false positive from revdep-rebuild for scilab-5.4.1