test/ukify: deduplicate path specification

diff --git a/src/ukify/test/test_ukify.py b/src/ukify/test/test_ukify.py
index 8ae4d04e8db0502b176d6662637cf4dfbdd6959c..f75ef0c8912636f38f97c0cc4c7b7a20bd56a576 100755 (executable)
--- a/src/ukify/test/test_ukify.py
+++ b/src/ukify/test/test_ukify.py
@@ -59,8 +59,10 @@ except ValueError:
     slow_tests = True
 
 arg_tools = ['--tools', build_root] if build_root else []
-if build_root and pathlib.Path(f"{build_root}/linux{ukify.guess_efi_arch()}.efi.stub").exists():
-    arg_tools += ['--stub', f"{build_root}/linux{ukify.guess_efi_arch()}.efi.stub"]
+if build_root and (
+        p := pathlib.Path(f"{build_root}/linux{ukify.guess_efi_arch()}.efi.stub")
+).exists():
+    arg_tools += ['--stub', p]
 
 def systemd_measure():
     opts = ukify.create_parser().parse_args(arg_tools)