Move log files to testrunner's log_directory.

Also, don't name custom log files with a leading dot in partition's root.
This is reserved to supervisord logfiles. Follow (somewhat) the FHS and
put log files in testrunner partition's /var/log.

slapos/recipe/erp5testnode/__init__.py

@@ -92,6 +92,7 @@ class Recipe(BaseSlapRecipe):
               test_node_title=self.parameter_dict.get('test_node_title'),
               project_title=self.parameter_dict.get('project_title'),
               bin_directory=self.bin_directory,
+              log_directory=self.log_directory,
               run_directory=self.run_directory,
               # botenvironemnt is splittable string of key=value to substitute
               # environment of running bot

slapos/recipe/erp5testnode/testnode.py

@@ -57,11 +57,11 @@ def safeRpcCall(function, *args):
 
 def getInputOutputFileList(config, command_name):
   stdout = open(os.path.join(
-                config['instance_root'],'.%s_out' % command_name),
+    config['log_directory'], '%s_out' % (command_name, )),
     'w+')
   stdout.write("%s\n" % command_name)
   stderr = open(os.path.join(
-                config['instance_root'],'.%s_err' % command_name),
+    config['log_directory'], '%s_err' % (command_name, )),
     'w+')
   return (stdout, stderr)