Correct expected value in replace component test.
Correct expected value in replace component test.

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