Option to supress "Environment contains multiple differing definitions for '$env'."

[sct0]

When I use emerge --pretend <package> | genlop --pretend I get a warning:

Environment contains multiple differing definitions for 'term'.
Using value from 'TERM' (alacritty) and ignoring 'term' (xterm-256color) at /usr/lib64/perl5/vendor_perl/5.40/LWP/UserAgent.pm line 1172.

I couldn't find an option in the manpage that prevents this.
Since it unnecessarily clutters the output, some way to suppress the warning or to be strict about case sensitivity in environment variables would be neat.