gs: update to gsutil-4.7

BUG=None
TEST=`./cbuildbot/run_tests --network` passes

Change-Id: Ib6ea8bb702de1af78ba45ecaba777836db1e7f17
Reviewed-on: https://chromium-review.googlesource.com/234230
Reviewed-by: Gabe Black <gabeblack@chromium.org>
Trybot-Ready: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Yu-Ju Hong <yjhong@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/242271
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Trybot-Ready: Prathmesh Prabhu <pprabhu@chromium.org>
diff --git a/lib/gs.py b/lib/gs.py
index e20ab12..cc7295f 100644
--- a/lib/gs.py
+++ b/lib/gs.py
@@ -251,9 +251,9 @@
   # (1*sleep) the first time, then (2*sleep), continuing via attempt * sleep.
   DEFAULT_SLEEP_TIME = 60
 
-  GSUTIL_VERSION = '4.7pre_retry_4xx_plus_logging_v3'
+  GSUTIL_VERSION = '4.7'
   GSUTIL_TAR = 'gsutil_%s.tar.gz' % GSUTIL_VERSION
-  GSUTIL_URL = PUBLIC_BASE_HTTPS_URL + 'prerelease/%s' % GSUTIL_TAR
+  GSUTIL_URL = PUBLIC_BASE_HTTPS_URL + 'pub/%s' % GSUTIL_TAR
   GSUTIL_API_SELECTOR = 'JSON'
 
   RESUMABLE_UPLOAD_ERROR = ('Too many resumable upload attempts failed without '