Fix example for ESP8266httpUpdate (esp8266#2251)

* Fix minor typo in spelling of failed. Removed s from http paths.

* add check if we are just updating spiffs to not reboot. example now works with this change.

Author: sk1tt1sh

libraries/ESP8266httpUpdate/examples/httpUpdateSPIFFS/httpUpdateSPIFFS.ino

@@ -41,14 +41,14 @@ void loop() {
     if((WiFiMulti.run() == WL_CONNECTED)) {
 
         USE_SERIAL.println("Update SPIFFS...");
-        t_httpUpdate_return ret = ESPhttpUpdate.updateSpiffs("https://server/spiffs.bin");
+        t_httpUpdate_return ret = ESPhttpUpdate.updateSpiffs("http://server/spiffs.bin");
         if(ret == HTTP_UPDATE_OK) {
             USE_SERIAL.println("Update sketch...");
-            ret = ESPhttpUpdate.update("https://server/file.bin");
+            ret = ESPhttpUpdate.update("http://server/file.bin");
 
             switch(ret) {
                 case HTTP_UPDATE_FAILED:
-                    USE_SERIAL.printf("HTTP_UPDATE_FAILD Error (%d): %s", ESPhttpUpdate.getLastError(), ESPhttpUpdate.getLastErrorString().c_str());
+                    USE_SERIAL.printf("HTTP_UPDATE_FAILED Error (%d): %s", ESPhttpUpdate.getLastError(), ESPhttpUpdate.getLastErrorString().c_str());
                     break;
 
                 case HTTP_UPDATE_NO_UPDATES:

libraries/ESP8266httpUpdate/src/ESP8266httpUpdate.cpp

@@ -297,7 +297,7 @@ HTTPUpdateResult ESP8266HTTPUpdate::handleUpdate(HTTPClient& http, const String&
                     DEBUG_HTTP_UPDATE("[httpUpdate] Update ok\n");
                     http.end();
 
-                    if(_rebootOnUpdate) {
+                    if(_rebootOnUpdate && !spiffs) {
                         ESP.restart();
                     }