Whitespace cleanup in contrib dir

contrib/apps/httpserver/httpserver-netconn.c

@@ -22,14 +22,14 @@ http_server_netconn_serve(struct netconn *conn)
   char *buf;
   u16_t buflen;
   err_t err;
-  
-  /* Read the data from the port, blocking if nothing yet there. 
+
+  /* Read the data from the port, blocking if nothing yet there.
    We assume the request (the part we care about) is in one netbuf */
   err = netconn_recv(conn, &inbuf);
-  
+
   if (err == ERR_OK) {
     netbuf_data(inbuf, (void**)&buf, &buflen);
-    
+
     /* Is this an HTTP GET command? (only check the first 5 chars, since
     there are other formats for GET, and we're keeping it very simple )*/
     if (buflen>=5 &&
@@ -38,20 +38,20 @@ http_server_netconn_serve(struct netconn *conn)
         buf[2]=='T' &&
         buf[3]==' ' &&
         buf[4]=='/' ) {
-      
-      /* Send the HTML header 
+
+      /* Send the HTML header
              * subtract 1 from the size, since we dont send the \0 in the string
              * NETCONN_NOCOPY: our data is const static, so no need to copy it
        */
       netconn_write(conn, http_html_hdr, sizeof(http_html_hdr)-1, NETCONN_NOCOPY);
-      
+
       /* Send our HTML page */
       netconn_write(conn, http_index_html, sizeof(http_index_html)-1, NETCONN_NOCOPY);
     }
   }
   /* Close the connection (server closes in HTTP) */
   netconn_close(conn);
-  
+
   /* Delete the buffer (netconn_recv gives us ownership,
    so we have to make sure to deallocate the buffer) */
   netbuf_delete(inbuf);
@@ -64,7 +64,7 @@ http_server_netconn_thread(void *arg)
   struct netconn *conn, *newconn;
   err_t err;
   LWIP_UNUSED_ARG(arg);
-  
+
   /* Create a new TCP connection handle */
   /* Bind to port 80 (HTTP) with default IP address */
 #if LWIP_IPV6
@@ -75,10 +75,10 @@ http_server_netconn_thread(void *arg)
   netconn_bind(conn, IP_ADDR_ANY, 80);
 #endif /* LWIP_IPV6 */
   LWIP_ERROR("http_server: invalid conn", (conn != NULL), return;);
-  
+
   /* Put the connection into LISTEN state */
   netconn_listen(conn);
-  
+
   do {
     err = netconn_accept(conn, &newconn);
     if (err == ERR_OK) {