gnc-fq-dump doesn't work for most sources

[Erik Colson]

Brian M. Sutin <gnucash3 at skewray.com> writes:

> $ gnc-fq-dump -v vanguard VTSAX
>     No results found for stock VTSAX.
>
> $ gnc-fq-dump -v nasdaq ibm
>     No results found for stock ibm.
>
> $ gnc-fq-dump -v nyse ATGE
>     No results found for stock ATGE.

These won't work ass vanguard, nasdaq and nyse are not supported in the
alphavantage module.  They should however be added in a future
release.. Use alphavantage instead.

best
--
erik colson