Failed to start tail on relative symbolic link

[RangerCD]

When I'm trying to start tailing on a relative symbolic link, it keeps throwing errors like these:

ts=2021-12-08T07:28:33.967830957Z caller=level.go:63 level=error msg="failed to start tailer" error="open test.log.2021-12-08: no such file or directory" filename=/home/rangercd/temp/test.log
ts=2021-12-08T07:28:43.9682562Z caller=level.go:63 level=error msg="failed to start tailer" error="open test.log.2021-12-08: no such file or directory" filename=/home/rangercd/temp/test.log

I have these files in /home/rangercd/temp/:

total 4.0K
lrwxrwxrwx 1 rangercd rangercd 19 Dec  8 15:42 test.log -> test.log.2021-12-08
-rw-r--r-- 1 rangercd rangercd  5 Dec  8 15:41 test.log.2021-12-08

Since my program's working directory is not /home/rangercd/temp/ (for example it's running in /tmp/) , this line overwrites filename with a wrong relative path test.log.2021-12-08:

tail/tail_posix.go

Line 17 in 7aa4e4a

filename, err = os.Readlink(name)

So it's actually trying to open /tmp/test.log.2021-12-08, which is not exists.

And I believe it should be filepath.EvalSymlinks here instead of os.Readlink