patch 8.2.4679: cannot have expandcmd() give an error message for mistakes Commit: https://github.com/vim/vim/commit/2b74b6805b5c8c4836b66df5d949f5ff6a77f8c7 Author: Yegappan Lakshmanan <yegappan@yahoo.com> Date: Sun Apr 3 21:30:32 2022 +0100 patch 8.2.4679: cannot have expandcmd() give an error message for mistakes Problem: Cannot have expandcmd() give an error message for mistakes. Solution: Add an optional argument to give errors. Fix memory leak when expanding files fails. (Yegappan Lakshmanan, closes #10071)

" Print all interface versions for Ubuntu. Part 1.

if 1
  execute 'source' expand('<sfile>:h') .. '/if_ver-cmd.vim'

  echo "*** Interface versions ***\n"

  echo 'Lua:'
  PrintVer lua print(vim.lua_version, jit and "(LuaJIT)" or "")

  echo 'MzScheme:'
  PrintVer mzscheme (display (version))

  echo 'Perl:'
  PrintVer perl print $^V

  echo 'Ruby:'
  PrintVer ruby print RUBY_VERSION

  echo 'Tcl:'
  PrintVer tcl puts [info patchlevel]

  echo 'Python 2:'
  PrintVer python print sys.version
endif