Enable COIL presubmit for infra/go

BUG=None
TEST=None

Change-Id: I09ab410277bc4f3fec409682d573d8b8e59b02df
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/go/+/2659661
Tested-by: Jack Neus <jackneus@google.com>
Reviewed-by: George Engelbrecht <engeg@google.com>
Commit-Queue: Jack Neus <jackneus@google.com>
Auto-Submit: Jack Neus <jackneus@google.com>
diff --git a/internal/repo_harness/repo_harness_test.go b/internal/repo_harness/repo_harness_test.go
index 1e87fa3..4b3cd1d 100644
--- a/internal/repo_harness/repo_harness_test.go
+++ b/internal/repo_harness/repo_harness_test.go
@@ -353,7 +353,7 @@
 	harness := RepoHarness{
 		harnessRoot: tmpDir,
 	}
-	// Sanity check: harness root exists.
+	// Check that harness root exists.
 	_, err = os.Stat(tmpDir)
 	assert.NilError(t, err)
 	// Perform teardown.
diff --git a/unblocked_terms.txt b/unblocked_terms.txt
new file mode 100644
index 0000000..00c5f38
--- /dev/null
+++ b/unblocked_terms.txt
@@ -0,0 +1,12 @@
+# KEEP THIS COMMENT IN YOUR COPY.
+#
+# Don't delete this file if you want to keep keyword_check enabled even if it's
+# empty.
+#
+# See repohooks/README.md for more details.
+
+black.?list
+dummy
+master
+sanity
+slave