Fix grammaro

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141927 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/InternalsManual.html b/docs/InternalsManual.html
index da83d89..54f01fc 100644
--- a/docs/InternalsManual.html
+++ b/docs/InternalsManual.html
@@ -1965,7 +1965,7 @@
     expression produces can change from one instantiation to the
     next), value dependence (i.e., the constant value your expression
     produces can change from one instantiation to the next),
-    instantiation dependence (i.e., a template parameter or occurs
+    instantiation dependence (i.e., a template parameter occurs
     anywhere in your expression), and whether your expression contains
     a parameter pack (for variadic templates). Often, computing these
     flags just means combining the results from the various types and