Log Message:
fzf: update to 0.45.0

* Added transform action to conditionally perform a series of actions

    # Disallow selecting an empty line
    echo -e "1. Hello\n2. Goodbye\n\n3. Exit" |
      fzf --height '~100%' --reverse --header 'Select one' \
          --bind 'enter:transform:[[ -n {} ]] && echo accept || echo \ 
"change-header:Invalid selection"'

    # Move cursor past the empty line
    echo -e "1. Hello\n2. Goodbye\n\n3. Exit" |
      fzf --height '~100%' --reverse --header 'Select one' \
          --bind 'enter:transform:[[ -n {} ]] && echo accept || echo \ 
"change-header:Invalid selection"' \
          --bind 'focus:transform:[[ -n {} ]] && exit; [[ {fzf:action} \ 
=~ up$ ]] && echo up || echo down'

    # A single key binding to toggle between modes
    fd --type file |
      fzf --prompt 'Files> ' \
          --header 'CTRL-T: Switch between Files/Directories' \
          --bind 'ctrl-t:transform:[[ ! {fzf:prompt} =~ Files ]] &&
                    echo "change-prompt(Files> )+reload(fd --type \ 
file)" ||
                    echo "change-prompt(Directories> )+reload(fd --type \ 
directory)"'

* Added placeholder expressions
  * {fzf:action} - The name of the last action performed
  * {fzf:prompt} - Prompt string (including ANSI color codes)
  * {fzf:query} - Synonym for {q}

* Added support for negative height

    # Terminal height minus 1, so you can still see the command line
    fzf --height=-1

  This handles a terminal resize better than --height=$(($(tput lines) - 1))

* Added: accept-or-print-query action that acts like accept but prints the
  current query when there's no match for the query

    # You can make CTRL-R paste the current query when there's no match
    export FZF_CTRL_R_OPTS='--bind enter:accept-or-print-query'

  * Note that there are alternative ways to implement the same strategy

      # 'become' is apparently more versatile but it's not available on Windows.
      export FZF_CTRL_R_OPTS='--bind "enter:become:if [ -z {} ]; then echo \ 
{q}; else echo {}; fi"'

      # Using the new 'transform' action
      export FZF_CTRL_R_OPTS='--bind "enter:transform:[ -z {} ] && \ 
echo print-query || echo accept"'

* Added show-header and hide-header actions
* Bug fixes