reword the unit test spec for gzip default behavior

Author: Ashish

agent-providers/span/src/test/scala/com/expedia/www/haystack/agent/pitchfork/HttpConfigSpec.scala

@@ -11,12 +11,12 @@ import scala.collection.JavaConverters._
 
 class HttpConfigSpec extends FunSpec with Matchers with EasyMockSugar {
   describe("Http configuration provider") {
-    it("should return gzip enabled as true if provided and its value is 'true'") {
+    it("should return gzip enabled as false if provided and its value is 'false'") {
       val config = ConfigFactory.parseMap(Map("port" -> 9115, "http.threads.min" -> 2, "http.threads.max" -> 4, "gzip.enabled" -> false).asJava)
       val httpConfig = HttpConfig.from(config)
       httpConfig.isGzipEnabled should equal (false)
     }
-    it("should return gzip enabled as false if not provided")  {
+    it("should return gzip enabled as true if not provided")  {
       val config = ConfigFactory.parseMap(Map("port" -> 9115, "http.threads.min" -> 2, "http.threads.max" -> 4).asJava)
       val httpConfig = HttpConfig.from(config)
       httpConfig.isGzipEnabled should equal (true)