Update __init__.py

allgo/__init__.py

@@ -51,7 +51,7 @@ class Init:
         """
         if not API_token_valid:
             API_token = get_random_string(length=32)
-            msg += "Sign in with your existing https://allgo18.inria.fr/accounts/login/?token=" + API_token+  " A||GO account \n"
+            msg = "Sign in with your existing https://allgo18.inria.fr/accounts/login/?token=" + API_token+  " A||GO account \n"
             print(msg)
         else:
             # FIXME : Have to check that the user is register