--- Libc/Libc-1725.40.4/string/FreeBSD/strerror.3
+++ Libc/Libc-763.13/string/FreeBSD/strerror.3
@@ -47,26 +47,18 @@
 .Sh SYNOPSIS
 .In stdio.h
 .Ft void
-.Fo perror
-.Fa "const char *s"
-.Fc
+.Fn perror "const char *string"
 .Vt extern const char * const sys_errlist[] ;
 .Vt extern const int sys_nerr ;
 .In string.h
 .Ft "char *"
-.Fo strerror
-.Fa "int errnum"
-.Fc
+.Fn strerror "int errnum"
 .Ft int
-.Fo strerror_r
-.Fa "int errnum"
-.Fa "char *strerrbuf"
-.Fa "size_t buflen"
-.Fc
+.Fn strerror_r "int errnum" "char *strerrbuf" "size_t buflen"
 .Sh DESCRIPTION
 The
 .Fn strerror ,
-.Fn strerror_r ,
+.Fn strerror_r
 and
 .Fn perror
 functions look up the error message string corresponding to an
@@ -96,7 +88,7 @@
 and writes it, followed by a newline, to the
 standard error file descriptor.
 If the argument
-.Fa s
+.Fa string
 is
 .Pf non- Dv NULL
 and does not point to the null character,
@@ -118,7 +110,7 @@
 .Er EINVAL
 as a warning.
 Error numbers recognized by this implementation fall in
-the range 0 <=
+the range 0 <
 .Fa errnum
 <
 .Fa sys_nerr .