# HG changeset patch
# User Alexis S. L. Carvalho <alexis@cecm.usp.br>
# Date 2006-07-21 04:51:17
# Node ID d32b31e88391ec02f52b04eef16ba5c043333209
# Parent  133811a7688b65505a7f6251c7722c19a02eb4af

run-tests.py: fix diff output when test-foo.out doesn't exist.

Previously, if test-foo.out doesn't exist and test-foo outputs
something, the first line of the diff will look like this:

-+changeset:   0:0acdaf898367

(note the leading "-")

diff --git a/tests/run-tests.py b/tests/run-tests.py
--- a/tests/run-tests.py
+++ b/tests/run-tests.py
@@ -244,7 +244,7 @@ def run_one(test):
         ref_out = splitnewlines(f.read())
         f.close()
     else:
-        ref_out = ['']
+        ref_out = []
     if out != ref_out:
         diffret = 1
         print "\nERROR: %s output changed" % (test)