Update to 7-Zip 17.01 Beta from Igor Pavlov

- Minor speed optimization for LZMA2 (xz and 7z) multi-threading compression.
  7-Zip now uses additional memory buffers for multi-block LZMA2 compression.
  CPU utilization was slightly improved.
- 7-zip now creates multi-block xz archives by default. Block size can be
  specified with -ms[Size]{m|g} switch.
- xz decoder now can unpack random block from multi-block xz archives.  7-Zip
  File Manager now can open nested multi-block xz archives (for example,
  image.iso.xz) without full unpacking of xz archive.
- 7-Zip now can create zip archives from stdin to stdout.
- 7-Zip command line: @listfile now doesn't work after -- switch.  Use
  -i@listfile before -- switch instead.

fixed bugs:
- 7-Zip could add unrequired alternate file streams to WIM archives, for
  commands that contain filename wildcards and -sns switch.
- 7-Zip 17.00 beta crashed for commands that write anti-item to 7z archive.
- 7-Zip 17.00 beta ignored "Use large memory pages" option.

CPP/7zip/UI/GUI/GUI.cpp

@@ -128,14 +128,21 @@ static int Main2()
 
   #if defined(_WIN32) && !defined(UNDER_CE)
   NSecurity::EnablePrivilege_SymLink();
+  #endif
+  
   #ifdef _7ZIP_LARGE_PAGES
   if (options.LargePages)
   {
     SetLargePageSize();
-    g_LargePagesMode = NSecurity::EnablePrivilege_LockMemory();
+    // note: this process also can inherit that Privilege from parent process
+    g_LargePagesMode =
+    #if defined(_WIN32) && !defined(UNDER_CE)
+      NSecurity::EnablePrivilege_LockMemory();
+    #else
+      true;
+    #endif
   }
   #endif
-  #endif
 
   CREATE_CODECS_OBJECT