[igraph] undocumented argument "eigenvectors" in igraph_community_leading_eigenvector()

[Minh Nguyen]

Hi folks,

The C library has the function igraph_community_leading_eigenvector()
to extract community structures via Newman's method of leading
eigenvector. All arguments of this function, except for
"eigenvectors", are documented. What is the purpose of the argument
"eigenvectors"? Is there any documentation on this argument?

-- 
Regards
Minh Van Nguyen