[libpng15] Minor editing of INSTALL, (whitespace, added copyright line)

ANNOUNCE

@@ -1,5 +1,5 @@
 
-Libpng 1.5.28beta01 - August 2, 2016
+Libpng 1.5.28beta01 - August 18, 2016
 
 This is not intended to be a public release.  It will be replaced
 within a few weeks by a public version or by another test version.
@@ -26,12 +26,13 @@ Other information:
 
 Changes since the last public release (1.5.27):
 
-version 1.5.28beta01 [August 2, 2016]
+version 1.5.28beta01 [August 18, 2016]
   Merge with current libpng16 pngvalid.c
   Fixed undefined behavior in png_push_save_buffer(). Do not call
     memcpy() with a null source, even if count is zero (Leon Scroggins III).
   Added "Common linking failures" section to INSTALL.
   Merge contrib/pngminim/*/makefile with libpng-1.6.24
+  Minor editing of INSTALL, (whitespace, added copyright line)
 
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CHANGES

@@ -4496,12 +4496,13 @@ version 1.5.27rc01 [May 14, 2016]
 version 1.5.27 [May 26, 2016]
   No changes.
 
-version 1.5.28beta01 [August 2, 2016]
+version 1.5.28beta01 [August 18, 2016]
   Merge with current libpng16 pngvalid.c
   Fixed undefined behavior in png_push_save_buffer(). Do not call
     memcpy() with a null source, even if count is zero (Leon Scroggins III).
   Added "Common linking failures" section to INSTALL.
   Merge contrib/pngminim/*/makefile with libpng-1.6.24
+  Minor editing of INSTALL, (whitespace, added copyright line)
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit

INSTALL

@@ -79,7 +79,7 @@ Or you can use one of the "projects" in the "projects" directory.
 Before installing libpng, you must first install zlib, if it
 is not already on your system.  zlib can usually be found
 wherever you got libpng; otherwise go to http://zlib.net.  You can place
-zlib in in the same directory as libpng or in another directory.
+zlib in the same directory as libpng or in another directory.
 
 If your system already has a preinstalled zlib you will still need
 to have access to the zlib.h and zconf.h include files that
@@ -97,7 +97,9 @@ LDFLAGS="-L$ZLIBLIB" export LDFLAGS
     LD_LIBRARY_PATH="$ZLIBLIB:$LD_LIBRARY_PATH" export LD_LIBRARY_PATH
 
 If you are using one of the makefile scripts, put ZLIBLIB and ZLIBINC
-in your environment and type "make ZLIBLIB=$ZLIBLIB ZLIBINC=$ZLIBINC test".
+in your environment and type
+
+    make ZLIBLIB=$ZLIBLIB ZLIBINC=$ZLIBINC test
 
 IV. Using cmake
 
@@ -131,7 +133,8 @@ Your directory structure should look like this:
              libpng-config.in, aclocal.m4, config.h.in, config.sub,
              depcomp, install-sh, mkinstalldirs, test-pngtest.sh
           contrib
-             gregbook, libtests, pngminim, pngminus, pngsuite, visupng
+             gregbook, libtests, pngminim, pngminus, pngsuite, tools,
+             visupng
           projects
              cbuilder5, owatcom, visualc71, vstudio, xcode
           scripts
@@ -162,9 +165,14 @@ VII. Building with makefiles
 Copy the file (or files) that you need from the
 scripts directory into this directory, for example
 
-   MSDOS example: copy scripts\makefile.msc makefile
+MSDOS example:
+
+    copy scripts\makefile.msc makefile
     copy scripts\pnglibconf.h.prebuilt pnglibconf.h
-   UNIX example:  cp scripts/makefile.std makefile
+
+UNIX example:
+
+    cp scripts/makefile.std makefile
     cp scripts/pnglibconf.h.prebuilt pnglibconf.h
 
 Read the makefile to see if you need to change any source or
@@ -232,7 +240,7 @@ libpng are compiled.  All the defines end in _SUPPORTED.  If you are
 never going to use a capability, you can change the #define to #undef
 before recompiling libpng and save yourself code and data space, or
 you can turn off individual capabilities with defines that begin with
-PNG_NO_.
+"PNG_NO_".
 
 In libpng-1.5.0 and later, the #define's are in pnglibconf.h instead.
 
@@ -300,7 +308,7 @@ only png_longjmp_ptr, which must match the C longjmp function.)  The new
 approach is documented in pngconf.h
 
 Despite these changes, libpng 1.5.0 only supports the native C function
-calling standard on those platforms tested so far (__cdecl on Microsoft
+calling standard on those platforms tested so far ("__cdecl" on Microsoft
 Windows).  This is because the support requirements for alternative
 calling conventions seem to no longer exist.  Developers who find it
 necessary to set PNG_API_RULE to 1 should advise the mailing list
@@ -385,3 +393,8 @@ XVII. Other sources of information about libpng:
 Further information can be found in the README and libpng-manual.txt
 files, in the individual makefiles, in png.h, and the manual pages
 libpng.3 and png.5.
+
+Copyright (c) 1998-2002,2006-2016 Glenn Randers-Pehrson
+This document is released under the libpng license.
+For conditions of distribution and use, see the disclaimer
+and license in png.h.