Remove trailing newline from MUNGE credential

webservice/update_config.py

@@ -268,7 +268,7 @@ def munge():
     """Make a MUNGE credential to send"""
     res = subprocess.run(['munge', '-n'], stdout=subprocess.PIPE, text=True)
     if res.returncode == 0:
-        return res.stdout
+        return res.stdout.strip()
     return None  # Something went wrong - for now, this is ignored