bash: upgraded package to upstream

Upgraded app-shells/bash to version 4.3_p48-r1 on amd64

I am not upgrading it to the latest stable (4.4_p12) because some
dependencies will need to be upgraded too and even after that there was
a merge conflict.

BUG=b:71656769
TEST=emerge-lakitu bash

Change-Id: Ic3a25b0d34919eda9fad35c526b1789f39980658
Reviewed-on: https://chromium-review.googlesource.com/927521
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Daniel Wang <wonderfly@google.com>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
9 files changed