Allow specifying multiple word files to unify into word list

[Peter Nerlich]

Allow specifying -w/--wordfile multiple times without the last one overriding previous occurances, but causing all files to be read and the resulting word list to be the union of the word lists of the individual dictionaries.

Example:

$ xkcdpass -w ger-anlx -w eff-short
verleiht drift recap singen scarf kasten

[Steven Tobin]

Hi Peter - multiple word files have been supported since v1.19.0 by providing a comma-separated list:

$ xkcdpass -w ger-anlx,eff-long 
schieben supernova stunt brachte zweiten exemplary

I hope that addresses your use-case!

[Peter Nerlich]

Aaah cool! Yes, now that I read the help messages again, I do see it; I apparently just glanced over it before.