[flang][OpenMP] Fix comments in test file, NFC

Address review comments for PR91214.

Author: kparzysz

flang/test/Lower/OpenMP/copyin-order.f90

@@ -1,5 +1,7 @@
 !RUN: bbc -fopenmp -emit-hlfir -o - %s | FileCheck %s
 
+!https://github.com/llvm/llvm-project/issues/91205
+
 !CHECK: omp.parallel if(%{{[0-9]+}} : i1) {
 !CHECK:   %[[THP1:[0-9]+]] = omp.threadprivate %{{[0-9]+}}#1
 !CHECK:   %[[DCL1:[0-9]+]]:2 = hlfir.declare %[[THP1]] {uniq_name = "_QFcopyin_scalar_arrayEx1"}
@@ -14,14 +16,12 @@
 !CHECK:   omp.terminator
 !CHECK: }
 
-!https://github.com/llvm/llvm-project/issues/91205
-
 subroutine copyin_scalar_array()
   integer(kind=4), save :: x1
   integer(kind=8), save :: x2(10)
   !$omp threadprivate(x1, x2)
 
-  ! Have x1 appear before x2 in the AST node for the `parallel construct,
+  ! Have x1 appear before x2 in the AST node for the `parallel` construct,
   ! but at the same time have them in a different order in `copyin`.
   !$omp parallel if (x1 .eq. x2(1)) copyin(x2, x1)
     call sub1(x1, x2)