fix Clang name in cmake file
fix Clang name in cmake file

Signed-off-by: Vassil Vassilev <0b291c0bdb4e22c8b7705ceedf8e168ff73f20e8@cern.ch>

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