Update copyright to 2015
diff --git a/src/core/iomgr/alarm_heap.c b/src/core/iomgr/alarm_heap.c
index 2b61983..8a8c9b0 100644
--- a/src/core/iomgr/alarm_heap.c
+++ b/src/core/iomgr/alarm_heap.c
@@ -1,6 +1,6 @@
/*
*
- * Copyright 2014, Google Inc.
+ * Copyright 2015, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -145,4 +145,4 @@
void grpc_alarm_heap_pop(grpc_alarm_heap *heap) {
grpc_alarm_heap_remove(heap, grpc_alarm_heap_top(heap));
-}
+}
\ No newline at end of file