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/Console/Main.cpp

@@ -97,7 +97,6 @@ static const char * const kHelpString =
 #endif
 #endif
     " <command> [<switches>...] <archive_name> [<file_names>...]\n"
-    "       [<@listfiles...>]\n"
     "\n"
     "<Commands>\n"
     "  a : Add files to archive\n"
@@ -114,6 +113,7 @@ static const char * const kHelpString =
     "\n"
     "<Switches>\n"
     "  -- : Stop switches parsing\n"
+    "  @listfile : set path to listfile that contains file names\n"
     "  -ai[r[-|0]]{@listfile|!wildcard} : Include archives\n"
     "  -ax[r[-|0]]{@listfile|!wildcard} : eXclude archives\n"
     "  -ao{a|s|t|u} : set Overwrite mode\n"
@@ -548,6 +548,7 @@ int Main2(
   if (options.LargePages)
   {
     SetLargePageSize();
+    // note: this process also can inherit that Privilege from parent process
     g_LargePagesMode =
     #if defined(_WIN32) && !defined(UNDER_CE)
       NSecurity::EnablePrivilege_LockMemory();