\documentclass{article}
\usepackage{ulem}
\pagestyle{headings}
\begin{document}
\part{Vimrc Configuration}
When using vim to edit Horde source files, the following .vimrc commands may be useful:

\begin{verbatim}

# Highlight whitespace at the end of a line
highlight WhitespaceEOL ctermbg=red guibg=red
match WhitespaceEOL /\s\+$/

# Tabs = 4 spaces in Horde
set tabstop=4
set shiftwidth=4
set expandtab

# Auto-indent
set ai

# Source files should be in UTF-8
set encoding=utf-8

# Map <F5> to remove all trailing whitespace
:nnoremap <silent> <F5> :let _s=@/<Bar>:%s/\s\+$//e<Bar>:let @/=_s<Bar>:nohl<CR>
\end{verbatim}

\end{document}
