private DiffRequest createDiffRequest(Project project, Revision r1, SVNProperties p1,
Revision r2, SVNProperties p2) {
SimpleDiffRequest request = new SimpleDiffRequest(project, "Subversion properties difference");
request.setContentTitles(r1.toString(), r2.toString());
request.setContents(new SimpleContent(propertiesToString(p1)),
new SimpleContent(propertiesToString(p2)));
return request;
}