updated to 7.4.979

updated to 7.4.979

7.4.973  pasting on the command line line inserts <CR> characters
7.4.974  when using :diffsplit the cursor jumps to the first line
7.4.975  using ":sort" on a very big file may cause corrupted text
7.4.976  when compiling for MSYS2 the Win32 clipboard is not enabled
7.4.977  problem with 'linebreak' set and using "space" in 'listchars'
7.4.978  test_cdo fails when using another language than English
7.4.979  when crypt key changes blocks read from disk are not decrypted