Fix logdog bin path

This resolves "Unable to create logdog client" errors on Swarming jobs
created with run-swarmed.py.

Change-Id: I62a9bbe5539d2e3bf15d11926b48be75184817e4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2144906
Commit-Queue: Natalie Chouinard <chouinard@chromium.org>
Commit-Queue: Ben Pastene <bpastene@chromium.org>
Auto-Submit: Natalie Chouinard <chouinard@chromium.org>
Reviewed-by: Ben Pastene <bpastene@chromium.org>
Cr-Commit-Position: refs/heads/master@{#758051}

tools/mb/mb.py

@@ -1647,7 +1647,7 @@ class MetaBuildWrapper(object):
           '../../testing/test_env.py',
           '../../build/android/test_wrapper/logdog_wrapper.py',
           '--target', target,
-          '--logdog-bin-cmd', '../../bin/logdog_butler',
+          '--logdog-bin-cmd', '../../.task_template_packages/logdog_butler',
           '--store-tombstones']
       if clang_coverage or java_coverage:
         cmdline += ['--coverage-dir', '${ISOLATED_OUTDIR}']