[log] Don't duplicate text in tooltip
[log] structure filter: increase the amount of max possible folders

Not sure why this limit is needed at all (apart from the command line
length limitations which can handle at least 100 paths in most cases
anyway).
[log] IDEA-122300 Show full path in structure filter tooltip

If there are multiple files selected, show them all, but don't let
the tooltip to grow to much, so don't show more than 10 lines.