It is impossible to use caff since it reports syntac error no matter which
options or flags you are using:

holgi@opti:~> rpm -q signing-party
signing-party-2.1-4.2.noarch


holgi@opti:~> caff --version
syntax error at /usr/bin/caff line 776, near "$handles{"
Global symbol "@infhs" requires explicit package name at /usr/bin/caff line
778.
Global symbol "@outfhs" requires explicit package name at /usr/bin/caff line
779.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 781.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 783.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 784.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 786.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 786.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 786.
Global symbol "$handles" requires explicit package name at /usr/bin/caff line
788.
Global symbol "@infhs" requires explicit package name at /usr/bin/caff line
788.
Global symbol "@outfhs" requires explicit package name at /usr/bin/caff line
788.
Global symbol "$handles" requires explicit package name at /usr/bin/caff line
789.
Global symbol "@infhs" requires explicit package name at /usr/bin/caff line
789.
Global symbol "$handles" requires explicit package name at /usr/bin/caff line
790.
Global symbol "@outfhs" requires explicit package name at /usr/bin/caff line
790.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 793.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 793.
Global symbol "@outfhs" requires explicit package name at /usr/bin/caff line
793.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 794.
Global symbol "@outfhs" requires explicit package name at /usr/bin/caff line
794.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 799.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 799.
Global symbol "@outfhs" requires explicit package name at /usr/bin/caff line
799.
Global symbol "%fh" requires explicit package name at /usr/bin/caff line 811.
Global symbol "%fh" requires explicit package name at /usr/bin/caff line 812.
Global symbol "%fh" requires explicit package name at /usr/bin/caff line 817.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 818.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 819.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 820.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 820.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 823.
Global symbol "%opts" requires explicit package name at /usr/bin/caff line 826.
Global symbol "%fh" requires explicit package name at /usr/bin/caff line 831.
syntax error at /usr/bin/caff line 844, near "}"
/usr/bin/caff has too many errors.