slight tweak to the grammar
slight tweak to the grammar

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