imap-tool: Fix usage print

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>

1 files changed, 1 insertions, 1 deletions

diff --git a/imap-tool b/imap-tool
index 3dc8728..0089d87 100755
--- a/imap-tool
+++ b/imap-tool
@@ -120,7 +120,7 @@ class imap_tool():
 				self.port = int(value)
 
 		if len(arguments) == 0:
-			print(usage)
+			print(self.usage)
 			return 1
 
 		action_option = arguments[0]