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/FileManager/FSFolderCopy.cpp

@@ -31,7 +31,7 @@ extern bool g_IsNT;
 
 namespace NFsFolder {
 
-HRESULT CCopyStateIO::MyCopyFile(CFSTR inPath, CFSTR outPath)
+HRESULT CCopyStateIO::MyCopyFile(CFSTR inPath, CFSTR outPath, DWORD attrib)
 {
   ErrorFileIndex = -1;
   ErrorMessage.Empty();
@@ -87,6 +87,9 @@ HRESULT CCopyStateIO::MyCopyFile(CFSTR inPath, CFSTR outPath)
     }
   }
 
+  if (attrib != INVALID_FILE_ATTRIBUTES)
+    SetFileAttrib(outPath, attrib);
+
   if (DeleteSrcFile)
   {
     if (!DeleteFileAlways(inPath))
@@ -424,7 +427,9 @@ static HRESULT CopyFile_Ask(
       state2.DeleteSrcFile = state.MoveMode;
       state2.TotalSize = state.ProgressInfo.TotalSize;
       state2.StartPos = state.ProgressInfo.StartPos;
-      RINOK(state2.MyCopyFile(srcPath, destPathNew));
+
+      RINOK(state2.MyCopyFile(srcPath, destPathNew, srcFileInfo.Attrib));
+      
       if (state2.ErrorFileIndex >= 0)
       {
         if (state2.ErrorMessage.IsEmpty())