/usr/share/gap/lib/nilpquot.gi is in gap-libs 4r7p9-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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##
#W nilpquot.gi GAP Library Werner Nickel
##
##
LeftNormedComm := function( list )
local n;
n := Length( list );
if n = 1 then return list[1]; fi;
return Comm( LeftNormedComm( list{[1..n-1]} ), list[n] );
end;
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