Hash table read syntax in guile 2.0

[Hengqing Hu]

Dear list,

It seems the read syntax of a hash table has been silently changed.

Now (make-hash-table) produces
#<hash-table 172f1c0 0/31>
instead what was in 1.8
#<hash-table 0/31>

But the document is not updated yet?

I used to use the read syntax to get the length of the hash table.
It would be more convinient if a hash-length procedure could be provided.

Best Regards, Hengqing Hu