- improved exception message
- improved exception message

openSUSE/libstorage-bgl-eval,aschnell/libstorage-bgl-eval,openSUSE/libstorage-bgl-eval,openSUSE/libstorage-bgl-eval,openSUSE/libstorage-bgl-eval,aschnell/libstorage-bgl-eval,aschnell/libstorage-bgl-eval,aschnell/libstorage-bgl-eval,aschnell/libstorage-bgl-eval,openSUSE/libstorage-bgl-eval