Removing extra whitespaces on bunch of PHP files using Ack-grep and Emacs

As a follow up to my own post on Indentations: Tabs vs. Spaces, I wanted to cleanup a number of files that contained a lot of extra and useless whitespaces that were getting on my nerves.

I did not want to spend too much time on this so, here is what I did.

First, here is what I have in my .emacs files that is needed for this to work:

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