kconfig: doc: fix $(fileno) to $(filename)
This is a typo.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
diff --git a/Documentation/kbuild/kconfig-macro-language.rst b/Documentation/kbuild/kconfig-macro-language.rst
index 8b413ef..6163467 100644
--- a/Documentation/kbuild/kconfig-macro-language.rst
+++ b/Documentation/kbuild/kconfig-macro-language.rst
@@ -97,7 +97,7 @@
particular number of arguments.
In Make, every built-in function takes at least one argument. Kconfig allows
-zero argument for built-in functions, such as $(fileno), $(lineno). You could
+zero argument for built-in functions, such as $(filename), $(lineno). You could
consider those as "built-in variable", but it is just a matter of how we call
it after all. Let's say "built-in function" here to refer to natively supported
functionality.
