Issue with list-index from SRFI-1

Hello list,

In SRFI-1 there is a list-index, and that is what is documented in the
guile manual. However, under modules/ice-9/boot-9.scm, there is a
list-index there too, and it behaves differently.

By default, the definitions of SRFI-1 are not available, but
everything under boot-9 is available. Should the boot-9 list-index be
documented in the Guile manual too? Is it supposed to be an internal
function?

Regards,
Nikolaos Chatzikonstantinou