[master] Add synopsis for png_set_16() to the manual.

libpng-manual.txt

 libpng-manual.txt - A description on how to use and modify libpng
 
- libpng version 1.5.2beta01 - February 12, 2011
+ libpng version 1.5.2beta01 - February 13, 2011
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@ libpng-manual.txt - A description on how to use and modify libpng
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.5.2beta01 - February 12, 2011
+ libpng versions 0.97, January 1998, through 1.5.2beta01 - February 13, 2011
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
 
@@ -4114,7 +4114,7 @@ Other rules can be inferred by inspecting the libpng source.
 
 XIV. Y2K Compliance in libpng
 
-February 12, 2011
+February 13, 2011
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.

libpng.3

-.TH LIBPNG 3 "February 12, 2011"
+.TH LIBPNG 3 "February 13, 2011"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.5.2beta01
 .SH SYNOPSIS
@@ -572,6 +572,10 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.5.2beta01
 
 \fI\fB
 
+\fBvoid png_set_expand_16 (png_structp \fIpng_ptr\fP\fB);\fP
+
+\fI\fB
+
 \fBvoid png_set_expand (png_structp \fIpng_ptr\fP\fB);\fP
 
 \fI\fB
@@ -919,7 +923,7 @@ Following is a copy of the libpng-manual.txt file that accompanies libpng.
 .SH LIBPNG.TXT
 libpng-manual.txt - A description on how to use and modify libpng
 
- libpng version 1.5.2beta01 - February 12, 2011
+ libpng version 1.5.2beta01 - February 13, 2011
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
@@ -930,7 +934,7 @@ libpng-manual.txt - A description on how to use and modify libpng
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.5.2beta01 - February 12, 2011
+ libpng versions 0.97, January 1998, through 1.5.2beta01 - February 13, 2011
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
 
@@ -5033,7 +5037,7 @@ Other rules can be inferred by inspecting the libpng source.
 
 .SH XIV. Y2K Compliance in libpng
 
-February 12, 2011
+February 13, 2011
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
@@ -5282,7 +5286,7 @@ possible without all of you.
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.5.2beta01 - February 12, 2011:
+Libpng version 1.5.2beta01 - February 13, 2011:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
 
@@ -5305,7 +5309,7 @@ this sentence.
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.5.2beta01, February 12, 2011, are
+libpng versions 1.2.6, August 15, 2004, through 1.5.2beta01, February 13, 2011, are
 Copyright (c) 2004,2006-2007 Glenn Randers-Pehrson, and are
 distributed according to the same disclaimer and license as libpng-1.2.5
 with the following individual added to the list of Contributing Authors
@@ -5404,7 +5408,7 @@ certification mark of the Open Source Initiative.
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-February 12, 2011
+February 13, 2011
 
 .\" end of man page