llvm/test/Transforms/GVN/null-aliases-nothing.ll: Fix a RUN line not to emit ModuleID.

Larry Evans reported it fails if source tree contains "load", like "download".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171243 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Transforms/GVN/null-aliases-nothing.ll b/test/Transforms/GVN/null-aliases-nothing.ll
index 9e4ae18..37bf09d 100644
--- a/test/Transforms/GVN/null-aliases-nothing.ll
+++ b/test/Transforms/GVN/null-aliases-nothing.ll
@@ -1,4 +1,4 @@
-; RUN: opt %s -basicaa -gvn -S | FileCheck %s
+; RUN: opt < %s -basicaa -gvn -S | FileCheck %s
 
 %t = type { i32 }
 declare void @test1f(i8*)