[mlir][arith] Fix build after #171024

Author: matthias-springer

mlir/test/Integration/Dialect/Arith/CPU/test-apfloat-emulation-vector.mlir

@@ -3,7 +3,7 @@
 // mlir_apfloat_wrappers in a platform-independent way.
 
 // All floating-point arithmetics is lowered through APFloat.
-// RUN: mlir-opt %s --convert-arith-to-apfloat --convert-scf-to-vector | \
+// RUN: mlir-opt %s --convert-arith-to-apfloat --convert-scf-to-vector \
 // RUN:     --convert-scf-to-cf --convert-to-llvm | \
 // RUN: mlir-runner -e entry --entry-point-result=void \
 // RUN:             --shared-libs=%mlir_c_runner_utils \
@@ -17,7 +17,7 @@ func.func @foo_vec() -> (vector<4xf8E4M3FN>, vector<4xf32>) {
 }
 
 func.func @entry() {
-  // CHECK-NEXT: ( 3.5, 3.5, 3.5, 3.5 )
+  // CHECK: ( 3.5, 3.5, 3.5, 3.5 )
   %a1_vec = arith.constant dense<[1.4, 1.4, 1.4, 1.4]> : vector<4xf8E4M3FN>
   %b1_vec, %b2_vec = func.call @foo_vec() : () -> (vector<4xf8E4M3FN>, vector<4xf32>)
   %c1_vec = arith.addf %a1_vec, %b1_vec : vector<4xf8E4M3FN>  // not supported by LLVM