Change pass name to something sane


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3946 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/LoopSimplify.cpp b/lib/Transforms/Utils/LoopSimplify.cpp
index 5f64757..76cc32e 100644
--- a/lib/Transforms/Utils/LoopSimplify.cpp
+++ b/lib/Transforms/Utils/LoopSimplify.cpp
@@ -36,8 +36,7 @@
     void InsertPreheaderForLoop(Loop *L);
   };
 
-  RegisterOpt<Preheaders> X("preheaders",
-                         "Insert a pre-header node for every loop in the CFG");
+  RegisterOpt<Preheaders> X("preheaders", "Natural loop pre-header insertion");
 }
 
 // Publically exposed interface to pass...