Survivor armor typo fixes

The grammar always bothered me. I was hoping someone would fix it, but it never happened -- so I did it myself!

The old descriptions of 'A (lightweight/heavy) home built combination armor' would make a reader think 'A lightweight/heavy home! ...built combination armor?'
Merge pull request #5901 from MisterFelixFox/survivor-armor-typo-fix

Survivor armor typo fixes