Errors

consistent_version
0.2,1,2.55,2.60
no_files_to_be_skipped
bdf_scripts/bdf2gdfont_pl.PL,lib/GD/Image.pm,lib/GD/Image_pm.PL
use_warnings
GD, GD::Group, GD::Image, GD::Polygon, GD::Polyline, GD::Simple
valid_signature
Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer.
gpg: Signature made Sat 22 Apr 2017 07:11:09 AM JST
gpg:                using DSA key 591E185470BE7C57CCF4516D9A6D92628FFDC942
gpg: Can't check signature: No public key