sys-block/fio: add python USE flag

This python USE flag separates the gnuplot from the python
tools that can be optionally installed.

BUG=b:145635956
TEST=emerge-sarien fio; ls /build/sarien/usr/bin/fio* (no python
utilites)
(delete pandas dependency for testing) USE=python emerge-sarien fio
ls /build/sarien/usr/bin/fio* (python tools included)
USE="python gnuplot" emerge-sarien fio
ls /build/sarien/usr/bin/fio* (python and gnuplot tools included)

Change-Id: I1b914ba44bd0c4d6b7af7a45fc890d1b8ee17fb4
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/2023432
Tested-by: Trent Begin <tbegin@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
1 file changed