Fixed that clang-format fails on travis.
Fixed that clang-format fails on travis.

This property isn't available in the clang-format we use, so
travis on github fails parsing this configuration. It also seems
to suggest now a default code style instead, so there's a chance
the last few commits have the wrong formatting now.

root-mirror/root,karies/root,root-mirror/root,root-mirror/root,olifre/root,karies/root,olifre/root,root-mirror/root,karies/root,karies/root,olifre/root,zzxuanyuan/root,zzxuanyuan/root,root-mirror/root,zzxuanyuan/root,zzxuanyuan/root,zzxuanyuan/root,karies/root,karies/root,olifre/root,olifre/root,karies/root,zzxuanyuan/root,zzxuanyuan/root,olifre/root,root-mirror/root,karies/root,zzxuanyuan/root,root-mirror/root,olifre/root,olifre/root,root-mirror/root,zzxuanyuan/root,karies/root,root-mirror/root,karies/root,root-mirror/root,zzxuanyuan/root,karies/root,olifre/root,olifre/root,zzxuanyuan/root,olifre/root,root-mirror/root,zzxuanyuan/root