To install AnyEvent::HTTPD::SendMultiHeaderPatch, copy and paste the appropriate command in to your terminal.
cpanm
cpanm AnyEvent::HTTPD::SendMultiHeaderPatch
CPAN shell
perl -MCPAN -e shell install AnyEvent::HTTPD::SendMultiHeaderPatch
For more information on module installation, please visit the detailed CPAN module installation guide.