[Bug-tar] Why I can not exclude .*.*.swp files?

[Peng Yu]

Maybe this is an easy question. But I can not exclude .*.*.swp file in
the resulted tar.gz file. Could you please let me know how to do it
correctly?

$ tar czvf ../trial/`basename $PWD`.tar.gz ../`basename $PWD`
--exclude={.*.*.swp}
tar: Removing leading `../' from member names
../current_diretory/
../current_diretory/.main.sh.swp
../current_diretory/main.sh