Java/C#: Improve the newlines in the generated model files.

Author: michaelnebel

misc/scripts/models-as-data/generate_flow_model_extensions.py

@@ -180,22 +180,19 @@ def makeContent(self):
 {sinkAddsTo}
 {sourceAddsTo}
 {summaryAddsTo}
-{negativeSummaryAddsTo}
-        """
+{negativeSummaryAddsTo}"""
 
     def makeTypeBasedContent(self):
         if self.generateTypeBasedSummaries:
             typeBasedSummaryAddsTo = self.getAddsTo("CaptureTypeBasedSummaryModels.ql", "extSummaryModel")
         else:
             typeBasedSummaryAddsTo = ""
 
-        return f"""
-# THIS FILE IS AN AUTO-GENERATED MODELS AS DATA FILE. DO NOT EDIT.
+        return f"""# THIS FILE IS AN AUTO-GENERATED MODELS AS DATA FILE. DO NOT EDIT.
 # Definitions of type based summaries in the {self.friendlyname} framework.
 
 extensions:
-{typeBasedSummaryAddsTo}
-        """
+{typeBasedSummaryAddsTo}"""
 
     def save(self, content, target):
         with open(target, "w") as targetYml: