Sync ZLIB with FSF GCC sources, bringing in version 1.2.11.

- Fix deflate stored bug when pulling last block from window
- Permit immediate deflateParams changes before any deflate input

zlib/os400/README400

@@ -1,4 +1,4 @@
-        ZLIB version 1.2.10 for OS/400 installation instructions
+        ZLIB version 1.2.11 for OS/400 installation instructions
 
 1) Download and unpack the zlib tarball to some IFS directory.
    (i.e.: /path/to/the/zlib/ifs/source/directory)

zlib/os400/make.sh

@@ -260,7 +260,7 @@ fi
 echo '#pragma comment(user, "ZLIB version '"${VERSION}"'")' > os400.c
 echo '#pragma comment(user, __DATE__)' >> os400.c
 echo '#pragma comment(user, __TIME__)' >> os400.c
-echo '#pragma comment(copyright, "Copyright (C) 1995-2016 Jean-Loup Gailly, Mark Adler. OS/400 version by P. Monnerat.")' >> os400.c
+echo '#pragma comment(copyright, "Copyright (C) 1995-2017 Jean-Loup Gailly, Mark Adler. OS/400 version by P. Monnerat.")' >> os400.c
 make_module     OS400           os400.c
 LINK=                           # No need to rebuild service program yet.
 MODULES=

zlib/os400/zlib.inc

@@ -1,7 +1,7 @@
       *  ZLIB.INC - Interface to the general purpose compression library
       *
       *  ILE RPG400 version by Patrick Monnerat, DATASPHERE.
-      *  Version 1.2.10
+      *  Version 1.2.11
       *
       *
       *  WARNING:
@@ -22,12 +22,12 @@
       *
       *  Versioning information.
       *
-     D ZLIB_VERSION    C                   '1.2.10'
+     D ZLIB_VERSION    C                   '1.2.11'
      D ZLIB_VERNUM     C                   X'12a0'
      D ZLIB_VER_MAJOR  C                   1
      D ZLIB_VER_MINOR  C                   2
      D ZLIB_VER_REVISION...
-     D                 C                   10
+     D                 C                   11
      D ZLIB_VER_SUBREVISION...
      D                 C                   0
       *