[iptables PATCH 3/7] tests: xlate-test: Print errors to stderr

[Phil Sutter <phil@xxxxxx>]

Return code is always zero, so grepping for output on stderr is a
simple way to detect testsuite failures.

Signed-off-by: Phil Sutter <phil@xxxxxx>
---
 xlate-test.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/xlate-test.py b/xlate-test.py
index 1fa5eca3e0764..bb7a447dc799e 100755
--- a/xlate-test.py
+++ b/xlate-test.py
@@ -75,7 +75,7 @@ def run_test(name, payload):
     if (passed == tests) and not args.test:
         print(name + ": " + green("OK"))
     if not test_passed:
-        print("\n".join(result))
+        print("\n".join(result), file=sys.stderr)
     if args.test:
         print("1 test file, %d tests, %d tests passed, %d tests failed, %d errors" % (tests, passed, failed, errors))
     else:
@@ -111,7 +111,7 @@ def main():
             with open(args.test, "r") as payload:
                 run_test(args.test, payload)
         except IOError:
-            print(red("Error: ") + "test file does not exist")
+            print(red("Error: ") + "test file does not exist", file=sys.stderr)
     else:
         load_test_files()
 
-- 
2.33.0