Fix help message in command remove --outdated
@@ -1091,7 +1091,7 @@ class Command(object):
help="Remove locks")
parser.add_argument("-o", "--outdated", default=False, action="store_true",
help="Remove only outdated from recipe packages. "
- "This flag can only be used with a reference")
+ "This flag can only be used with a pattern or a reference")
parser.add_argument('-p', '--packages', nargs="*", action=Extender,
help="Remove all packages of the specified reference if "
"no specific package ID is provided")
