--- Libc/Libc-583/string/strcspn.3
+++ Libc/Libc-262/string/strcspn.3
@@ -47,29 +47,27 @@
 .Sh SYNOPSIS
 .In string.h
 .Ft size_t
-.Fo strcspn
-.Fa "const char *s1"
-.Fa "const char *s2"
-.Fc
+.Fn strcspn "const char *s" "const char *charset"
 .Sh DESCRIPTION
 The
 .Fn strcspn
 function
 spans the initial part of the null-terminated string
-.Fa s1 ,
+.Fa s
 as long as the characters from
-.Fa s1
+.Fa s
 do not occur in string
-.Fa s2
+.Fa charset
 (it
 spans the
 .Em complement
 of
-.Fa s2 ) .
+.Fa charset ) .
 .Sh RETURN VALUES
 The
 .Fn strcspn
-function returns the number of characters spanned.
+function
+returns the number of characters spanned.
 .Sh SEE ALSO
 .Xr memchr 3 ,
 .Xr strchr 3 ,