test: Remove trailing spaces from ends of lines in test/ directory. * test/bug-31371.tst, test/bug-36025/@testclass/testclass.m, test/build-sparse-tests.sh, test/classes/@CPrecedenceTester2/CPrecedenceTester2.m, test/classes/@CPrecedenceTester3/CPrecedenceTester3.m, test/classes/@Cork/click.m, test/classes/@Dork/Dork.m, test/classes/@Dork/display.m, test/classes/@Dork/gack.m, test/classes/@Gork/cork.m, test/classes/@Gork/gark.m, test/classes/@Gork/subsasgn.m, test/classes/@Pork/Pork.m, test/classes/@Pork/gurk.m, test/classes/@Snork/gick.m, test/classes/@Spork/geek.m, test/error.tst, test/func.tst, test/index.tst, test/io.tst, test/line-continue.tst, test/prefer.tst, test/switch.tst, test/system.tst, test/try.tst: Remove trailing spaces from ends of lines in test/ directory.

function display (s)
%  Display the critical info for an amplifier

   gick = get (s, 'gick');
   disp ([inputname(1),'.gick = ']);
   disp (' ');
   disp (gick);
   disp (' ');
   disp ([inputname(1),'.gack = ']);
   disp (' ');
   disp (s.gack);

end