Fix(Py3): Fix log reporting

`error` could be bytes.

diff --git a/Robots/bkmk_rforking.py b/Robots/bkmk_rforking.py
index 07f28bcf123dc31576049c960e04431ff4964438..136440c28ecc7cdc834e1563087aa154df9de220 100644 (file)
--- a/Robots/bkmk_rforking.py
+++ b/Robots/bkmk_rforking.py
@@ -100,7 +100,7 @@ class robot_forking(Robot):
                 error = check_subp.readPendingErrLine()
                 if not error:
                     break
-                sys.stderr.write("(subp) " + error)
+                sys.stderr.write("(subp) %s" % error)
             sys.stderr.flush()
 
         except KeyboardInterrupt: