call > yyy
test_getline Enter:xxxx
$n=1, *$()="xxxx","","","","","","","","",""
test_getline Enter:yyyyyyy
$n=1, *$()="yyyyyyy","","","","","","","","",""
test_getline Enter:zz
$n=1, *$()="zz","","","","","","","","",""
test_getline Enter: