[ruff] Fix dict.get(x, None) invocations

Author: inducer

loopy/check.py

@@ -1359,7 +1359,7 @@ def check_for_nested_base_storage(kernel: LoopKernel) -> None:
 
     for ary in kernel.temporary_variables.values():
         if ary.base_storage:
-            storage_array = name_to_array.get(ary.base_storage, None)
+            storage_array = name_to_array.get(ary.base_storage)
 
             if storage_array is None:
                 raise LoopyError("Nothing known about storage array "

loopy/kernel/tools.py

@@ -857,7 +857,7 @@ def get_auto_axis_iname_ranking_by_stride(kernel, insn):
                     if var.name in auto_axis_inames:
                         # excludes '1', i.e.  the constant
                         new_stride = coeff*stride
-                        old_stride = iname_to_stride_expr.get(var.name, None)
+                        old_stride = iname_to_stride_expr.get(var.name)
                         if old_stride is None or new_stride < old_stride:
                             iname_to_stride_expr[var.name] = new_stride