Cppunit tests just don't run the desktop logic to determine whether to
restart normally, but for LOK, that happens.  Without this, if versionrc
changes, a LOK-using unit test would fail.  Simple reproducer:

sed -i "s|\(buildid=\).*|\1$(echo $RANDOM|sha1sum -|sed 's/ .*//')|" instdir/program/versionrc
make -sr CppunitTest_libreofficekit_tiledrendering

Should be an acceptable alternative approach to commit
5acadbfb (Implement lokconf_init.,
2014-07-21).

Change-Id: I4354e646d3bcc0c1199db5a175708206b4a30294