isip_tkdiff [-Vbiw] [-D date] [-r version_tag] file1 file2
isip_tkdiff x.cc y.cc; isip_tkdiff -r isip_r00_n05 Integral.h;
isip_tkdiff x.cc y.cc
isip_tkdiff x.cc
isip_tkdiff
isip_tkdiff -D 7_days_ago x.cc