Fixed variable name being uppercase (codestyle)

Author: Johannes Duesing

app/utils/instancemanagement/InstanceRegistry.scala

@@ -188,7 +188,7 @@ object InstanceRegistry extends InstanceJsonSupport with AppLogging
       } else {
         val idToPost = configuration.webApiInstance.id.getOrElse(-1L)
 
-        val MatchingData = JsObject("MatchingSuccessful" -> JsBoolean(isWebApiReachable),
+        val matchingData = JsObject("MatchingSuccessful" -> JsBoolean(isWebApiReachable),
           "SenderId" -> JsNumber(configuration.assignedID.getOrElse(-1L)))
 
         val request = HttpRequest(
@@ -197,7 +197,7 @@ object InstanceRegistry extends InstanceJsonSupport with AppLogging
 
         Await.result(Http(system).singleRequest(request
           .withHeaders(RawHeader("Authorization",s"Bearer ${AuthProvider.generateJwt()}"))
-          .withEntity(ContentTypes.`application/json`, ByteString(MatchingData.toJson.toString))) map {response =>
+          .withEntity(ContentTypes.`application/json`, ByteString(matchingData.toJson.toString))) map {response =>
 
           if(response.status == StatusCodes.OK){
             log.info("Successfully posted matching result to Instance Registry.")