UpdateClass::printError now accepts the Print object (#3763)

libraries/Update/src/Update.h

@@ -78,7 +78,7 @@ class UpdateClass {
     /*
       Prints the last error to an output stream
     */
-    void printError(Stream &out);
+    void printError(Print &out);
 
     const char * errorString();
 

libraries/Update/src/Updater.cpp

@@ -359,7 +359,7 @@ size_t UpdateClass::writeStream(Stream &data) {
     return written;
 }
 
-void UpdateClass::printError(Stream &out){
+void UpdateClass::printError(Print &out){
     out.println(_err2str(_error));
 }