I don't think it's mandatory to create a branch for a pull request although it's often done... sound_options.cpp ? Well that's what happens with so many PR, I might have missed one. Well I checked your patch-1 branch, it was about gui.cpp, and your main branch doesn't contain any commit from you, so I don't know where this commit is.
It's good, I could retrieved your changes from github, you just won't see your name in the from for the commit, but I cited "mer-curious" in the comment, and updated the locale files too.
And the reason why I missed is because I merged all this manually because there were too many, I saw they were named as patch-1, patch-2, etc... so I didn't try to check, I just got all these patches, and missed this one because it was named differently. Next time make all your edits in the same branch then make a pull request for this branch alone, it will make things easier, if there is a next time !