Fix newline

Author: bcardosolopes

mlir/test/Dialect/LLVMIR/alias.mlir

@@ -138,4 +138,4 @@ llvm.mlir.alias private unnamed_addr thread_local @a30 {dso_local} : i32 {
 // CHECK: llvm.mlir.alias private unnamed_addr thread_local @a30 {dso_local} : i32 {
 // CHECK:   %0 = llvm.mlir.addressof @g30 : !llvm.ptr
 // CHECK:   llvm.return %0 : !llvm.ptr
-// CHECK: }
+// CHECK: }