Real Vim ninjas count every keystroke - do you?

Pick a challenge, fire up Vim, and show us what you got.

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$ gem install vimgolf
$ vimgolf setup
$ vimgolf put 4d1a4d82a860b7447200008d

Whitespace, empty lines and tabs

Convert tabs to spaces, strip empty lines and trailing whitespace.

Start file

        convert tabs to spaces

                strip all blank lines 

        and remove any trailing spaces   

End file

  convert tabs to spaces
    strip all blank lines
  and remove any trailing spaces

View Diff

1,5c1,3
<       convert tabs to spaces
< 
<               strip all blank lines 
< 
<       and remove any trailing spaces   
---
>   convert tabs to spaces
>     strip all blank lines
>   and remove any trailing spaces

Solutions by @yancy_dong:

Created by: @igrigorik Tweet

804 active golfers, 3744 entries

Solutions by @yancy_dong: