--- Libc/Libc-498/string/strdup.3
+++ Libc/Libc-262/string/strdup.3
@@ -43,16 +43,14 @@
 .Sh SYNOPSIS
 .In string.h
 .Ft char *
-.Fo strdup
-.Fa "const char *s1"
-.Fc
+.Fn strdup "const char *str"
 .Sh DESCRIPTION
 The
 .Fn strdup
 function
 allocates sufficient memory for a copy
 of the string
-.Fa s1 ,
+.Fa str ,
 does the copy, and returns a pointer to it.
 The pointer may subsequently be used as an
 argument to the function