Spell `necessary' correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7944 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bytecode/Reader/Reader.cpp b/lib/Bytecode/Reader/Reader.cpp
index 42ba5d9..097a8d4 100644
--- a/lib/Bytecode/Reader/Reader.cpp
+++ b/lib/Bytecode/Reader/Reader.cpp
@@ -665,7 +665,7 @@
   Module *R = Parser.ParseBytecode(Buffer, Buffer+Length, ModuleID);
   if (ErrorStr) *ErrorStr = Parser.getError();
 
-  delete [] PtrToDelete;   // Delete alignment buffer if neccesary
+  delete [] PtrToDelete;   // Delete alignment buffer if necessary
   return R;
 }