Problem: Vim does not detect pacman.log file
Solution: Detect pacmanlogs and add syntax highlighting
pacman.log is a filetype common to Arch Liux and related distributions.
Add some simple syntax highlighting for the pacmanlog filetype.
closes: #13618
Signed-off-by: Ronan Pigott <ronan@rjp.ie>
Signed-off-by: Christian Brabandt <cb@256bit.org>
