[PATCH 1 of 6 V3] cmdutil: convert the prefetchfiles() hook to a callback mechanism (API)

[Yuya Nishihara]

On Tue, 13 Feb 2018 00:39:14 -0500, Matt Harbison wrote:
> # HG changeset patch
> # User Matt Harbison <matt_harbison at yahoo.com>
> # Date 1518326637 18000
> #      Sun Feb 11 00:23:57 2018 -0500
> # Node ID 7d3abc6fcc2f39cd890c0062121dcb0ac44df45a
> # Parent  e99e6917138593d2dddf7e0f5506dbd3f6c87743
> cmdutil: convert the prefetchfiles() hook to a callback mechanism (API)

Queued, thanks.