NEWS: fix typo

Author: yuwata

NEWS

@@ -658,7 +658,7 @@ CHANGES WITH 254 in spe:
           server-side environment variable expansion in specified command
           lines. Expansion defaults to enabled for all execution types except
           --scope, where it defaults to off (and prints a warning) for backward
-          compatbility reasons. --scope will be flipped to default enabled too
+          compatibility reasons. --scope will be flipped to default enabled too
           in a future release, so if you are using --scope and passing a '$'
           character in the payload you should start explicitly using
           --expand-environment=yes/no according to the use case.