File fix-xenpvnetboot.patch of Package xen.21118

References: bsc#1138563

--- xen-4.10.3-testing/tools/misc/xenpvnetboot.orig	2019-06-19 13:46:55.249857405 -0600
+++ xen-4.10.3-testing/tools/misc/xenpvnetboot	2019-06-19 13:57:43.148948352 -0600
@@ -89,7 +89,7 @@ class Fetcher:
         suffix = ''.join(random.sample(string.ascii_letters, 6))
         local_name = os.path.join(self.tmpdir, 'xenpvboot.%s.%s' % (os.path.basename(filename), suffix))
         try:
-            return request.urlretrieve(url, local_name)
+            return request.urlretrieve(url, local_name)[0]
         except Exception as err:
             raise RuntimeError('Cannot get file %s: %s' % (url, err))
 
@@ -284,7 +284,7 @@ Supported locations:
         sys.exit(1)
 
     sys.stdout.flush()
-    os.write(fd, output)
+    os.write(fd, output.encode('utf-8'))
 
 
 if __name__ == '__main__':