@Override
  public void copyFromLocalFile(boolean delSrc, Path src, Path dst)
    throws IOException {
    super.copyFromLocalFile(delSrc, swizzleParamPath(src), swizzleParamPath(dst));
  }
Create a proxy file system for fs.

@param fs FileSystem to create proxy for
@param myUri URI to use as proxy. Only the scheme and authority from
             this are used right now
shims/common/src/main/java/org/apache/hadoop/fs/ProxyFileSystem.java