Fixed spelling and grammar.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8478 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/IPA/DependenceGraph.cpp b/lib/Analysis/IPA/DependenceGraph.cpp
index 284a96a..faabdd3 100644
--- a/lib/Analysis/IPA/DependenceGraph.cpp
+++ b/lib/Analysis/IPA/DependenceGraph.cpp
@@ -1,6 +1,6 @@
 //===- DependenceGraph.cpp - Dependence graph for a function ----*- C++ -*-===//
 //
-// This file implments an explicit representation for the dependence graph
+// This file implements an explicit representation for the dependence graph
 // of a function, with one node per instruction and one edge per dependence.
 // Dependences include both data and control dependences.
 //