Only spit attributes on = if it exists (#162)

Author: satterly

alertaclient/commands/cmd_send.py

@@ -88,7 +88,7 @@ def send_alert(resource, event, **kwargs):
         value=value,
         text=text,
         tags=tags,
-        attributes=dict(a.split('=', maxsplit=1) for a in attributes),
+        attributes=dict(a.split('=', maxsplit=1) if '=' in a else (a, None) for a in attributes),
         origin=origin,
         type=type,
         timeout=timeout,