Analyser: replaced "the same unit" with "equivalent units" in a comment.
Analyser: replaced "the same unit" with "equivalent units" in a comment.

hsorby/libcellml,cellml/libcellml,nickerso/libcellml,nickerso/libcellml,cellml/libcellml,hsorby/libcellml,hsorby/libcellml,hsorby/libcellml,nickerso/libcellml,nickerso/libcellml,cellml/libcellml,cellml/libcellml