add missing point at the end of sentences

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145943 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/DFAPacketizerEmitter.h b/utils/TableGen/DFAPacketizerEmitter.h
index f180fc6..9a13e78 100644
--- a/utils/TableGen/DFAPacketizerEmitter.h
+++ b/utils/TableGen/DFAPacketizerEmitter.h
@@ -25,14 +25,14 @@
 namespace llvm {
 //
 // class DFAGen: class that generates and prints out the DFA for resource
-// tracking
+// tracking.
 //
 class DFAGen : public TableGenBackend {
 private:
   std::string TargetName;
   //
   // allInsnClasses is the set of all possible resources consumed by an
-  // InstrStage
+  // InstrStage.
   //
   DenseSet<unsigned> allInsnClasses;
   RecordKeeper &Records;