Created attachment 8274
This patch makes "Search for files" field name translatable and adds Russian translation.
I added it to pot and ru.po manually because there are no instructions about how to add it.
Mikhail Novosyolov referenced this bugreport in commit fc5eba88b4e647f2328fabcc67e8c4c823d9fe73
Translate "Search for files" (bug #15097)
Thanks for the patch! It was applied at the above commit.