Change incorrect uses of 'an'

I'm not sure how these even made it into the translation as even at the time the translation was done they would not have been considered correct.

https://books.google.com/ngrams/graph?content=an+hundred%2Ca+hundred&case_insensitive=on&year_start=0&year_end=2008&corpus=15&smoothing=7&share=&direct_url=t4%3B%2Can%20hundred%3B%2Cc0%3B%2Cs0%3B%3Ban%20hundred%3B%2Cc0%3B%3Ban%20Hundred%3B%2Cc0%3B%3BAn%20hundred%3B%2Cc0%3B.t4%3B%2Ca%20hundred%3B%2Cc0%3B%2Cs0%3B%3Ba%20hundred%3B%2Cc0%3B%3Ba%20Hundred%3B%2Cc0%3B%3BA%20hundred%3B%2Cc0