Fix kre export when no recipes being export belong to a category, and thus no category structure needs to be written
Fix kre export when no recipes being export belong to a category, and thus no category structure needs to be written

svn path=/trunk/kdeextragear-3/krecipes/; revision=395397

eliovir/krecipes,eliovir/krecipes,eliovir/krecipes,eliovir/krecipes