Fix test on windows.

llvm-svn: 257475
diff --git a/llvm/test/tools/llvm-lto/error.ll b/llvm/test/tools/llvm-lto/error.ll
index 8f11270..43043d0 100644
--- a/llvm/test/tools/llvm-lto/error.ll
+++ b/llvm/test/tools/llvm-lto/error.ll
@@ -1,2 +1,2 @@
 ; RUN: not llvm-lto foobar 2>&1 | FileCheck %s
-; CHECK: llvm-lto: error loading file 'foobar': No such file or directory
+; CHECK: llvm-lto: error loading file 'foobar': {{N|n}}o such file or directory