bzcmp and bzdiff have issues when passing their arguments to the underline cmp and diff commands, issues that are not present in the original script

[Edinson E. Padrón Urdaneta]

Package's information:
$ apt-cache show bzip2
Package: bzip2
Architecture: amd64
Version: 1.0.8-2
Multi-Arch: foreign
Priority: important
Section: utils
Origin: Ubuntu
Maintainer: Ubuntu Developers <email address hidden>
Original-Maintainer: Anibal Monsalve Salazar <email address hidden>
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 195
Depends: libbz2-1.0 (= 1.0.8-2), libc6 (>= 2.14)
Suggests: bzip2-doc
Replaces: libbz2 (<< 0.9.5d-3)
Filename: pool/main/b/bzip2/bzip2_1.0.8-2_amd64.deb
Size: 34064
MD5sum: 63ab63d6739fddaa232e534e996d98ed
SHA1: 16dde6d0b0c0d96b2cfe40017058350af4cd459e
SHA256: 9201778f5a3bd4ff685d41cd677660129e57c544b7526f20ff8c48318c63dbe8
Homepage: https://sourceware.org/bzip2/
Description: high-quality block-sorting file compressor - utilities
Description-md5: 1e71313ce794d3de1e3bc63ac58885b5
Task: minimal
Build-Essential: yes

Test data:
$ echo file content > f1 && echo filx content > f2
$ bzip2 f1 f2

Other setup:
$ git clone https://gitlab.com/bzip2/bzip2.git
$ ln -nv ./bzip2/bzdiff bzcmp
$ chmod u+x ./bzcmp

In regards to bzcmp, this is a very simple way to check for the issue:
# ubuntu's
$ bzcmp f1.bz2 f2.bz2
cmp: invalid --ignore-initial value '/tmp/bzdiff.8kHv0B9tBJ'
cmp: Try 'cmp --help' for more information.
# original's (https://gitlab.com/bzip2/bzip2)
$ ./bzcmp f1.bz2 f2.bz2
- /tmp/bzdiff.vpXGvPfv5I differ: char 4, line 1

In regard to bzdiff, this is a very simple way to check for the issue:
# ubuntu's
$ bzdiff -y -W20 f1.bz2 f2.bz2
diff: invalid option -- ' '
diff: Try 'diff --help' for more information.
# original's (https://gitlab.com/bzip2/bzip2)
$ bash bzip2/bzdiff -y -W20 f1.bz2 f2.bz2
file | filx

I think the culprit is the /usr/bin/bzdiff script. Here the difference between ubuntu's and the original one
$ diff -W150 --suppress-common-lines /usr/bin/bzdiff bzip2/bzdiff
27,31c27
< -*) if test -z "$OPTIONS"; then
< OPTIONS="$ARG"
< else
< OPTIONS="$OPTIONS $ARG"
< fi ;;
---
> -*) OPTIONS="$OPTIONS $ARG";;
43a40,43
> tmp=`mktemp ${TMPDIR:-/tmp}/bzdiff.XXXXXXXXXX` || {
> echo 'cannot create a temporary file' >&2
> exit 1
> }
56,61c56,57
< tmp=`mktemp "${TMPDIR:-/tmp}"/bzdiff.XXXXXXXXXX` || {
< echo 'cannot create a temporary file' >&2
< exit 1
< }
< bzip2 -cdfq "$2" > "$tmp"
< bzip2 -cdfq "$1" | $comp "$OPTIONS" - "$tmp"
---
> bzip2 -cdfq "$2" > $tmp
> bzip2 -cdfq "$1" | $comp $OPTIONS - $tmp
63c59
< /bin/rm -f "$tmp";;
---
> /bin/rm -f $tmp;;
75a72
> exit "$STAT"
80d76
< exit "$STAT"