Update namespace_test.cc
Update namespace_test.cc

linyvxiang/dfs,yvxiang/coverage_for_bfs,linyvxiang/dfs,lylei/dfs,baidu/bfs,baidu/bfs,bluebore/dfs,linyvxiang/dfs,yvxiang/dfs,yvxiang/dfs,imotai/bfs,lylei/dfs,imotai/bfs,yvxiang/coverage_for_bfs,myawan/bfs-1,00k/ToyDFS,yvxiang/coverage_for_bfs,bluebore/dfs,myawan/bfs-1,bluebore/bfs,yvxiang/coverage_for_bfs,baidu/bfs,bluebore/bfs,imotai/bfs,myawan/bfs-1,myawan/bfs-1,lylei/dfs,bluebore/dfs,yvxiang/dfs,lylei/dfs,baidu/bfs,bluebore/bfs,00k/ToyDFS,yvxiang/dfs