Fix exitcode references before use

confluent_client/bin/nodefirmware

@@ -127,6 +127,7 @@ def update_firmware(session, filename):
         sys.stderr.write('{0}: {1}\n'.format(node, noderrs[node]))
 
 def show_firmware(session):
+    global exitcode
     firmware_shown = False
     for component in components:
         for res in session.read(

confluent_client/confluent/client.py

@@ -35,6 +35,7 @@ _attraliases = {
 
 
 def printerror(res, node=None):
+    exitcode = 0
     if 'errorcode' in res:
         exitcode = res['errorcode']
     if 'error' in res: