Update dd-trace-core/src/main/java/datadog/trace/core/CoreTracer.java

Co-authored-by: Manuel Álvarez Álvarez <manuel-alvarez-alvarez@users.noreply.github.com>

Author: smola

dd-trace-core/src/main/java/datadog/trace/core/CoreTracer.java

@@ -256,7 +256,7 @@ public void onRootSpanFinished(AgentSpan root, EndpointTracker tracker) {
    */
   void onRootSpanPublished(final AgentSpan root) {
     // Request context is propagated to contexts in child spans.
-    // Assume here that if present it will be so starting inthe top span.
+    // Assume here that if present it will be so starting in the top span.
     RequestContext requestContext = root.getRequestContext();
     if (requestContext != null) {
       try {