Update Zlib to version 1.2.8

third_party/zlib/contrib/minizip/unzip.h

 /* unzip.h -- IO for uncompress .zip files using zlib
    Version 1.1, February 14h, 2010
    part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
 
          Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
 
          Modifications of Unzip for Zip64
          Copyright (C) 2007-2008 Even Rouault
 
          Modifications for Zip64 support on both zip and unzip
@@ skipping 179 matching lines @@
 
 extern unzFile ZEXPORT unzOpen2_64 OF((const void *path,
                                     zlib_filefunc64_def* pzlib_filefunc_def));
 /*
    Open a Zip file, like unz64Open, but provide a set of file low level API
       for read/write the zip file (see ioapi.h)
 */
 
 extern int ZEXPORT unzClose OF((unzFile file));
 /*
-  Close a ZipFile opened with unzipOpen.
+  Close a ZipFile opened with unzOpen.
   If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
-    these files MUST be closed with unzipCloseCurrentFile before call unzipClose.
+    these files MUST be closed with unzCloseCurrentFile before call unzClose.
   return UNZ_OK if there is no problem. */
 
 extern int ZEXPORT unzGetGlobalInfo OF((unzFile file,
                                         unz_global_info *pglobal_info));
 
 extern int ZEXPORT unzGetGlobalInfo64 OF((unzFile file,
                                         unz_global_info64 *pglobal_info));
 /*
   Write info about the ZipFile in the *pglobal_info structure.
   No preparation of the structure is needed
@@ skipping 215 matching lines @@
 extern int ZEXPORT unzSetOffset64 (unzFile file, ZPOS64_T pos);
 extern int ZEXPORT unzSetOffset (unzFile file, uLong pos);
 
 
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif /* _unz64_H */