--- Libc/Libc-262/string/memchr.3
+++ Libc/Libc-583/string/memchr.3
@@ -47,7 +47,11 @@
 .Sh SYNOPSIS
 .In string.h
 .Ft void *
-.Fn memchr "const void *b" "int c" "size_t len"
+.Fo memchr
+.Fa "const void *s"
+.Fa "int c"
+.Fa "size_t n"
+.Fc
 .Sh DESCRIPTION
 The
 .Fn memchr
@@ -56,14 +60,14 @@
 .Fa c
 (converted to an unsigned char)
 in string
-.Fa b .
+.Fa s .
 .Sh RETURN VALUES
 The
 .Fn memchr
 function
 returns a pointer to the byte located,
 or NULL if no such byte exists within
-.Fa len
+.Fa n
 bytes.
 .Sh SEE ALSO
 .Xr strchr 3 ,