Undo an unintended whitespace change

Undo an unintended whitespace change in
commit 87f7cffc, except that TABs are
replaced by spaces.

Change-Id: Ib1f08a4ff8bc14869cd8579fe37d30701953be3b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2468710Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Dale Curtis <dalecurtis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#816794}

DEPS

@@ -4916,7 +4916,7 @@ hooks = [
     'pattern': '.',
     'condition': 'checkout_chromeos or checkout_simplechrome',
     'action': [ 'vpython',
-  'src/tools/download_optimization_profile.py',
+                'src/tools/download_optimization_profile.py',
                 '--newest_state=src/chromeos/profiles/atom.afdo.newest.txt',
                 '--local_state=src/chromeos/profiles/atom.afdo.local.txt',
                 '--output_name=src/chromeos/profiles/atom.afdo.prof',