Fix code formatting in tests/parser/parser.cpp.
Fix code formatting in tests/parser/parser.cpp.

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