7 REGRESSION_TEST(`normal', `xargs echo The < regress.in')
8 REGRESSION_TEST(`I', `xargs -I% echo The % % % %% % % < regress.in')
9 REGRESSION_TEST(`J', `xargs -J% echo The % again. < regress.in')
10 REGRESSION_TEST(`L', `xargs -L3 echo < regress.in')
11 REGRESSION_TEST(`R', `xargs -I% -R1 echo The % % % %% % % < regress.in')