misched: comments from code review.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157975 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineScheduler.cpp b/lib/CodeGen/MachineScheduler.cpp
index b8eefae..c318d84 100644
--- a/lib/CodeGen/MachineScheduler.cpp
+++ b/lib/CodeGen/MachineScheduler.cpp
@@ -701,9 +701,9 @@
 //===----------------------------------------------------------------------===//
 
 namespace {
-/// ReadyQ encapsulates vector of "ready" SUnits with basic convenience methods
-/// for pushing and removing nodes. ReadyQ's are uniquely identified by an
-/// ID. SUnit::NodeQueueId us a mask of the ReadyQs that the SUnit is in.
+/// ReadyQueue encapsulates vector of "ready" SUnits with basic convenience
+/// methods for pushing and removing nodes. ReadyQueue's are uniquely identified
+/// by an ID. SUnit::NodeQueueId is a mask of the ReadyQueues the SUnit is in.
 class ReadyQueue {
   unsigned ID;
   std::string Name;