Add a few fixes

Hi,
Could you add/incorporate  these fixes to your branch? I might switch to your fork for the Arch package.
 
https://github.com/juergenhoetzel/pkgbuild-mode/commit/64a870e1f94fd3d74c3c6af3897d52ebf4f6bdc7

https://github.com/juergenhoetzel/pkgbuild-mode/commit/b02b08ed6d552989f920d21236901ca78a7ebd5b

Thanks,

Eric (Snowman)