From c9d24b1de246531e45ce3a954c1c90fa0f114f72 Mon Sep 17 00:00:00 2001
From: Christian Decker <decker.christian@gmail.com>
Date: Thu, 12 Nov 2020 13:20:02 +0100
Subject: [PATCH] pyln: Set the prefix in TailableProc

We rely on it when logging, but didn't set it in the class, rather we
did in the sub-classes. This proved to be rather annoying to search
since it'd just fail silently and not log any output.
---
 contrib/pyln-testing/pyln/testing/utils.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/contrib/pyln-testing/pyln/testing/utils.py b/contrib/pyln-testing/pyln/testing/utils.py
index 733edb449..dde8c51e2 100644
--- a/contrib/pyln-testing/pyln/testing/utils.py
+++ b/contrib/pyln-testing/pyln/testing/utils.py
@@ -146,6 +146,7 @@ class TailableProc(object):
         self.outputDir = outputDir
         self.logsearch_start = 0
         self.err_logs = []
+        self.prefix = ""
 
         # Should we be logging lines we read from stdout?
         self.verbose = verbose