Fixes based on review

Author: novalisdenahi

src/main/java/com/configcat/ConfigCatLogMessages.java

@@ -174,7 +174,7 @@ public static FormattableLogMessage getFetchFailedDueToUnexpectedHttpResponse(fi
      */
     public static FormattableLogMessage getFetchFailedDueToRequestTimeout(final Integer connectTimeoutMillis, final Integer readTimeoutMillis, final Integer writeTimeoutMillis, final String cfRayId) {
         if (cfRayId != null) {
-            return new FormattableLogMessage("Request timed out while trying to fetch config JSON. Timeout values: [connect: %dms, read: %dms, write: %dms]  %s", connectTimeoutMillis, readTimeoutMillis, writeTimeoutMillis, ConfigCatLogMessages.getCFRayIdPostFix(cfRayId));
+            return new FormattableLogMessage("Request timed out while trying to fetch config JSON. Timeout values: [connect: %dms, read: %dms, write: %dms] %s", connectTimeoutMillis, readTimeoutMillis, writeTimeoutMillis, ConfigCatLogMessages.getCFRayIdPostFix(cfRayId));
         }
         return new FormattableLogMessage("Request timed out while trying to fetch config JSON. Timeout values: [connect: %dms, read: %dms, write: %dms]", connectTimeoutMillis, readTimeoutMillis, writeTimeoutMillis);
     }

src/main/java/com/configcat/ConfigFetcher.java

@@ -111,9 +111,8 @@ public void onFailure(@NotNull Call call, @NotNull IOException e) {
 
             @Override
             public void onResponse(@NotNull Call call, @NotNull Response response) {
-                String cfRayId = null;
+                String cfRayId = response.header("CF-RAY");
                 try (ResponseBody body = response.body()) {
-                    cfRayId = response.header("CF-RAY");
                     if (response.code() == 200) {
                         String content = body != null ? body.string() : null;
                         String eTag = response.header("ETag");