Change working directory for coverage testing to just .
Change working directory for coverage testing to just .

hsorby/libcellml,libcellml/buildbot-testing,nickerso/libcellml,nickerso/libcellml,hsorby/libcellml,MichaelClerx/libcellml,MichaelClerx/libcellml,MichaelClerx/libcellml,nickerso/libcellml,cellml/libcellml,hsorby/libcellml,libcellml/buildbot-testing,cellml/libcellml,cellml/libcellml,cellml/libcellml,hsorby/libcellml,nickerso/libcellml