Fix grammatical error in diagnostic.

llvm-svn: 216221
diff --git a/clang/test/SemaTemplate/deduction.cpp b/clang/test/SemaTemplate/deduction.cpp
index aecb5ee..59162b7 100644
--- a/clang/test/SemaTemplate/deduction.cpp
+++ b/clang/test/SemaTemplate/deduction.cpp
@@ -107,7 +107,7 @@
 }
 
 namespace test0 {
-  template <class T> void make(const T *(*fn)()); // expected-note {{candidate template ignored: can't deduce a type for 'T' which would make 'const T' equal 'char'}}
+  template <class T> void make(const T *(*fn)()); // expected-note {{candidate template ignored: can't deduce a type for 'T' that would make 'const T' equal 'char'}}
   char *char_maker();
   void test() {
     make(char_maker); // expected-error {{no matching function for call to 'make'}}