fixed some spelling mistakes,

[venthur]

that's all :)

[waylan]

I recently noticed this failure elsewhere. It would appear that I introduced the error in #1260 and then failed to notice the failing test. We should probably fix it here. We have two options.

1. Change codebase to code base (two words).
2. Add codebase to the .spell-dict as a single word.

A quick search shows that a few dictionaries have added the single word, however they all appear to be the community editable type. Therefore, I am more inclined to go with two words unless someone can provide a good reason not to.

[waylan]

I just noticed that this PR is changing the php and pl tests. Those tests have been copied from their respective projects and are to be used as-is. In other words, we do not make any edits to those files. All edits to those files will need to be reverted for this to be accepted.

[venthur]

done and done :)