TBR: Fix comment in tests file.

Change-Id: Icc39ffac07ca77e5bef02f299df460ca46bc3af2
diff --git a/tests b/tests
index c3ed059..0f43ea4 100644
--- a/tests
+++ b/tests
@@ -1,5 +1,4 @@
-// See $MOJO_DIR/src/mojo/devtools/common/mojo_test for the format of this
-// file.
+# See $MOJO_DIR/src/mojo/devtools/common/mojo_test for the format of this file.
 
 tests = [
 	{