build: add missing defattr for gmond-modules-python package
build: add missing defattr for gmond-modules-python package

reported by Ulf Lange as missing in the file description
for this package and resulting in build failures using
the OpenSuSE build service


git-svn-id: 27e0aca8c7a52a9ae65dfba2e16879604119af8c@1842 93a4e39c-3214-0410-bb16-828d8e3bcd0f

fastly/ganglia,fastly/ganglia,fastly/ganglia,fastly/ganglia,fastly/ganglia