test$ echo quux>quux.txt
test$ ~/proj/bzpack.old/src/bzpack.clang quux.txt quux.old -e
test$ bzpack quux.txt quux.new -e -ef8
Warning: No size gain after compression.
test$ bdiff quux.old quux.new
File: quux.old
000000: B7      [ 4A ]
000006: FF FC   [ 55 57 ]
test$ bzpack quux.txt quux.new -e -ef8 -n
Warning: No size gain after compression.
test$ bdiff quux.old quux.new
File: quux.old
000000: B7      [ B6 ]
000006: FF FC   [ AA A8 ]
test$ ~/proj/bzpack.pri/src/bzpack.clang quux.txt quux.old -e
test$ bdiff quux.old quux.new
File: quux.old
000000: B7      [ B6 ]
000006: FF FC   [ AA A8 ]
test$