CVS psmith make: Fix bug #2515: the .SECONDARY target with no prerequisites wasn't

CVSROOT:        /cvsroot/make
Module name:    make
Changes by:     psmith  03/03/28 01:31:45

Modified files:
        .              : ChangeLog file.c 
        tests          : ChangeLog 
        tests/scripts/targets: SECONDARY 

Log message:
Fix bug #2515: the .SECONDARY target with no prerequisites wasn't
behaving properly (if you listed prerequisites it worked properly).