symlink.2: Further fine tuning of argument names

Follow-up to f2ae6dde0c
See https://sourceware.org/bugzilla/show_bug.cgi?id=16073

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

man2/symlink.2

@@ -29,13 +29,13 @@
 .\" Modified 1997-01-31 by Eric S. Raymond <esr@thyrsus.com>
 .\" Modified 2004-06-23 by Michael Kerrisk <mtk.manpages@gmail.com>
 .\"
-.TH SYMLINK 2 2013-10-26 "Linux" "Linux Programmer's Manual"
+.TH SYMLINK 2 2013-10-30 "Linux" "Linux Programmer's Manual"
 .SH NAME
 symlink \- make a new name for a file
 .SH SYNOPSIS
 .B #include <unistd.h>
 .sp
-.BI "int symlink(const char *" filepath ", const char *" linkpath );
+.BI "int symlink(const char *" target ", const char *" linkpath );
 .sp
 .in -4n
 Feature Test Macro Requirements for glibc (see
@@ -54,7 +54,7 @@ _XOPEN_SOURCE\ &&\ _XOPEN_SOURCE_EXTENDED || _POSIX_C_SOURCE\ >=\ 200112L
 creates a symbolic link named
 .I linkpath
 which contains the string
-.IR filepath .
+.IR target .
 
 Symbolic links are interpreted at run time as if the contents of the
 link had been substituted into the path being followed to find a file or
@@ -107,7 +107,7 @@ implementation.
 already exists.
 .TP
 .B EFAULT
-.IR filepath " or " linkpath " points outside your accessible address space."
+.IR target " or " linkpath " points outside your accessible address space."
 .TP
 .B EIO
 An I/O error occurred.
@@ -117,13 +117,13 @@ Too many symbolic links were encountered in resolving
 .IR linkpath .
 .TP
 .B ENAMETOOLONG
-.IR filepath " or " linkpath " was too long."
+.IR target " or " linkpath " was too long."
 .TP
 .B ENOENT
 A directory component in
 .I linkpath
 does not exist or is a dangling symbolic link, or
-.I filepath
+.I target
 is the empty string.
 .TP
 .B ENOMEM
@@ -154,7 +154,7 @@ SVr4, 4.3BSD, POSIX.1-2001.
 .\" re multiple files with the same name, and NFS.
 .SH NOTES
 No checking of
-.I filepath
+.I target
 is done.
 
 Deleting the name referred to by a symlink will actually delete the