decorators: Fix typo
@@ -292,7 +292,7 @@ class KwargInfo(T.Generic[_T]):
validation, just converstion.
:param deprecated_values: a dictionary mapping a value to the version of
meson it was deprecated in.
- :param since: a dictionary mapping a value to the version of meson it was
+ :param since_values: a dictionary mapping a value to the version of meson it was
added in.
"""
