Android: Use newlines for gn args in benchmark.py

Fix for `autoninja.py` since otherwise its regex assumes use_goma is not
on.

Bug: 1092528
Change-Id: I12b53e52485ae5750a9588f57b4518a6bf495ac3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2252615
Commit-Queue: Peter Wen <wnwen@chromium.org>
Commit-Queue: Andrew Grieve <agrieve@chromium.org>
Auto-Submit: Peter Wen <wnwen@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#779938}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 705238a43d03a63957c23d0da0346c04574e350c
1 file changed