From 463d4bada6238cd0e21cd2e778f4ae6163fdf1b7 Mon Sep 17 00:00:00 2001
From: Dan Buch <daniel.buch@gmail.com>
Date: Sat, 12 Aug 2017 22:21:53 -0400
Subject: [PATCH] Explicitly set mode to 'w' when combining coverprofiles

---
 runtests | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/runtests b/runtests
index d5e6933..f5064a2 100755
--- a/runtests
+++ b/runtests
@@ -149,7 +149,7 @@ def _go_version():
 
 
 def _combine_coverprofiles(coverprofiles):
-    tmp_args = dict(suffix='.coverprofile', delete=False)
+    tmp_args = dict(suffix='.coverprofile', mode='w', delete=False)
     if _PY3:
         tmp_args['encoding'] = 'utf-8'