Fix json format in expectations file am: 2a89d29a16

Original change: https://android-review.googlesource.com/c/platform/art/+/2111847

Change-Id: I8e869dad316b5860bea3ed478551599186ca27f9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/tools/libcore_gcstress_debug_failures.txt b/tools/libcore_gcstress_debug_failures.txt
index d56c341..e8f3e1f 100644
--- a/tools/libcore_gcstress_debug_failures.txt
+++ b/tools/libcore_gcstress_debug_failures.txt
@@ -51,7 +51,7 @@
           "org.apache.harmony.tests.java.lang.ref.ReferenceQueueTest#test_removeJ",
           "org.apache.harmony.tests.java.lang.ProcessManagerTest#testSleep",
           "org.apache.harmony.tests.java.util.TimerTest#testOverdueTaskExecutesImmediately",
-          "org.apache.harmony.tests.java.util.WeakHashMapTest#test_keySet_hasNext",
+          "org.apache.harmony.tests.java.util.WeakHashMapTest#test_keySet_hasNext"
   ]
 },
 {
@@ -81,6 +81,7 @@
           "test.java.lang.StrictMath.HypotTests_testAgainstTranslit_shard3",
           "test.java.lang.StrictMath.HypotTests_testAgainstTranslit_shard4",
           "test.java.math.BigDecimal",
-          "test.java.math.BigInteger_testConstructor"]
+          "test.java.math.BigInteger_testConstructor"
+  ]
 }
 ]