/usr/share/freemat/toolbox/test/nargouttest.m is in freemat-data 4.0-5build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | function [a1,a2,a3,a4,a5] = nargouttest
printf('nargout = %d\n',nargout);
a1 = 1; a2 = 2; a3 = 3; a4 = 4; a5 = 5;
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