Fix casing issue with sourcetypes, addresses DVPL-3638

Author: Shakeel Mohamed

splunklib/modularinput/event.py

@@ -63,7 +63,7 @@ def __init__(self, data=None, stanza=None, time=None, host=None, index=None, sou
         self.host = host
         self.index = index
         self.source = source
-        self.sourceType = sourcetype
+        self.sourcetype = sourcetype
         self.stanza = stanza
         self.time = time
         self.unbroken = unbroken
@@ -91,7 +91,7 @@ def write_to(self, stream):
         # add all other subelements to this Event, represented by (tag, text)
         subelements = [
             ("source", self.source),
-            ("sourceType", self.sourceType),
+            ("sourcetype", self.sourcetype),
             ("index", self.index),
             ("host", self.host),
             ("data", self.data)