enter_chroot: force jobs=1; locale-gen complains less; profit!

locale-gen has some logic to automagically determine the numbers of CPUs
(and therefore number of jobs). But it also has logic to force jobs to 1
when running locale-archive. The net effect is that we get 1 job, and an
annoying warning along with it:

 * Generating locale-archive: forcing # of jobs to 1

This happens every time we enter the chroot.

Let's just force jobs=1, to workaround locale-gen's internal
disagreements.

BUG=chromium:761153
TEST=`cros_sdk`

Change-Id: Id3f0b8537eb4d987c1e2d94b83c53240750b0d49
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/646763
Reviewed-by: Mike Frysinger <vapier@chromium.org>
1 file changed