contrib: pass "--noclean" to rpmbuild in "makerepo.sh"

Recent rpmbuild will delete the source directory on successful build.
With `makerepo.sh` that is bad, because we want that directory with the
git history. Pass "--noclean" to avoid that.

contrib/fedora/utils/makerepo.sh

@@ -685,7 +685,7 @@ popd
 if [[ $LOCAL != 0 ]]; then
     rm -rf ./.makerepo.git/
     mv "$DIRNAME/.git" ./.makerepo.git/
-    $FEDPKG $DIST local
+    $FEDPKG $DIST local -- --noclean
     mv ./.makerepo.git/ "$DIRNAME/.git"
     pushd "$DIRNAME"
         git checkout -- .gitignore