Fix typo in Linux build instructions

Change-Id: Ibd3291ac69042141ad9809021abcb6d7a18b27cf
Reviewed-on: https://chromium-review.googlesource.com/779186
Reviewed-by: Pavol Marko <pmarko@chromium.org>
Commit-Queue: Kush Sinha <sinhak@chromium.org>
Cr-Commit-Position: refs/heads/master@{#517814}
1 file changed