Wrong line number is shown by subinfo

[aki2o]

About set_level of Log::Handler, the following result was shown by subinfo.

NAME: set_level
ARG1: $name As SCALAR
ARG2: $new As Unknown
RETURN: Literal As SCALAR
FILE: /home/hiroaki/perl5/perlbrew/perls/perl-5.18.1/lib/site_perl/5.18.1/Log/Handler.pm
LINE: 354
COL: 1

But, set_level is defined on the line 1448.