Fixed capitalization on 'marked out of date' to match convention

[ericthomasca]

Having this line capitalised will make it match the other lines stating with two colons " : : "

[Morganamilo]

In yay this was a submenu with a prefix of ->. Looks like I've ditched the whole submenu thing and we never use -> and only use ::. In that cause it probably makes sense to capitalise it.

[Morganamilo]

Looking through, key import and "does not contain PKGBUILD" should be capped too.