fix for review comment

Author: max-leuthaeuser

joern-cli/frontends/swiftsrc2cpg/src/main/scala/io/joern/swiftsrc2cpg/passes/ConfigFileCreationPass.scala

@@ -35,14 +35,14 @@ class ConfigFileCreationPass(cpg: Cpg, config: Config)
 
   override def runOnPart(diffGraph: DiffGraphBuilder, file: Path): Unit = {
     val parseResult = if (isBinaryPlist(file)) {
-      val header = s"<!--This has been generated from ${file.toAbsolutePath}-->\n"
-      Try((PropertyListParser.parse(file.toFile).toXMLPropertyList, header))
+      val sourceComment = s"\n<!--This file was generated from ${file.toAbsolutePath}-->"
+      Try((PropertyListParser.parse(file.toFile).toXMLPropertyList, sourceComment))
     } else {
       Try((IOUtils.readEntireFile(file), ""))
     }
     parseResult match {
-      case Success((content, header)) =>
-        val configFileContent = s"$header$content"
+      case Success((content, sourceComment)) =>
+        val configFileContent = s"$content$sourceComment"
         val name              = configFileName(file)
         val configNode        = NewConfigFile().name(name).content(configFileContent)
         logger.debug(s"Adding config file $name")

joern-cli/frontends/swiftsrc2cpg/src/test/scala/io/joern/swiftsrc2cpg/passes/config/ConfigFileCreationPassTests.scala

@@ -67,7 +67,9 @@ class ConfigFileCreationPassTests extends AnyFunSpec with Matchers {
           val node = diff.nodes.collectFirst { case n: NewConfigFile => n }.get
           node.name should (startWith("testbin") and endWith(".plist"))
           // binary should have been converted to XML content:
-          node.content should (startWith("<!--This has been generated from") and endWith(Xml))
+          node.content should startWith(Xml)
+          // and the content should have a comment referencing the original file at the very end
+          node.content.linesIterator.toList.last should startWith("<!--This file was generated from")
         }
       }
     }