Use an even more precise triple to avoid errors on Darwin, where we don't use comdats for inline entities.

llvm-svn: 319835
diff --git a/clang/test/Modules/var-templates.cpp b/clang/test/Modules/var-templates.cpp
index 398e381..eca2428 100644
--- a/clang/test/Modules/var-templates.cpp
+++ b/clang/test/Modules/var-templates.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fmodules -std=c++14 -emit-llvm %s -o - -triple %itanium_abi_triple | FileCheck %s
+// RUN: %clang_cc1 -fmodules -std=c++14 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s
 
 #pragma clang module build A
 module A {}