Fixes for ctags.kak

1. Fix #2250. Enable ctags to handle absolute file paths.
   Only prepend tagroot to tag location if it is a relative file path.

2. Include signature field in the default ctags command.
   The regex for displaying signature info includes a mandatory pattern
   for 'signature' field, but the field is not a default option for the ctags command.
   If the tags file is generated by the as-is ctags command, pattern matching will fail,
   and the whole ctags line for the selected function will be displayed instead.

0 files changed, 0 insertions, 0 deletions