syntax-highlighting: vim: add myself as a maintainer

Add myself as a maintainer of these files since I'll be keeping them
in sync with the Vim repository.

Signed-off-by: Liam Beguin <liambeguin@gmail.com>
diff --git a/data/syntax-highlighting/vim/ftplugin/meson.vim b/data/syntax-highlighting/vim/ftplugin/meson.vim
index e432ebf..d48fa1d 100644
--- a/data/syntax-highlighting/vim/ftplugin/meson.vim
+++ b/data/syntax-highlighting/vim/ftplugin/meson.vim
@@ -1,6 +1,7 @@
 " Vim filetype plugin file
 " Language:	meson
 " License:	VIM License
+" Maintainer:   Liam Beguin <liambeguin@gmail.com>
 " Original Author:	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 " Last Change:		2018 Nov 27
 
diff --git a/data/syntax-highlighting/vim/indent/meson.vim b/data/syntax-highlighting/vim/indent/meson.vim
index 6e389d1..ec0cbb4 100644
--- a/data/syntax-highlighting/vim/indent/meson.vim
+++ b/data/syntax-highlighting/vim/indent/meson.vim
@@ -2,6 +2,7 @@
 " Language:		Meson
 " License:		VIM License
 " Maintainer:		Nirbheek Chauhan <nirbheek.chauhan@gmail.com>
+"	        	Liam Beguin <liambeguin@gmail.com>
 " Original Authors:	David Bustos <bustos@caltech.edu>
 "			Bram Moolenaar <Bram@vim.org>
 " Last Change:		2015 Feb 23
diff --git a/data/syntax-highlighting/vim/syntax/meson.vim b/data/syntax-highlighting/vim/syntax/meson.vim
index 321866f..215a3b7 100644
--- a/data/syntax-highlighting/vim/syntax/meson.vim
+++ b/data/syntax-highlighting/vim/syntax/meson.vim
@@ -2,6 +2,7 @@
 " Language:	Meson
 " License:	VIM License
 " Maintainer:	Nirbheek Chauhan <nirbheek.chauhan@gmail.com>
+"		Liam Beguin <liambeguin@gmail.com>
 " Last Change:	2016 Dec 7
 " Credits:	Zvezdan Petkovic <zpetkovic@acm.org>
 "		Neil Schemenauer <nas@meson.ca>