Fix behaviour for 0 and 1 meetings (tested)

bbbmon/bbbmon.py

@@ -140,11 +140,7 @@ def get_meetings(secret: Secret, bbb_url: Url) -> Iterable[XmlDictConfig]:
     if type(d["meetings"]["meeting"]) is XmlListConfig:
         meetings = sorted([m for m in d["meetings"]["meeting"] if m["running"] == "true"], key=lambda x:int(x['participantCount']), reverse=True)
     elif type(d["meetings"]["meeting"]) is XmlDictConfig:
-        if len(d["meetings"]["meeting"]) > 0:
-            meetings = [d["meetings"]["meeting"][0]]
-        else:
-            print("There are no active meetings currently.")
-            exit()
+        meetings = [d["meetings"]["meeting"]]
     return meetings