miyagawa/heroku-buildpack-perl — pull request #9 by bengrunfeld (2013-11-04 22:19:40+00:00)
Title: Adding default PERL5LIB to support custom Procfile entries

In the default process type we are setting -Mlib to include `local/lib/perl5`. However, if a custom Procfile is specified, the modules can't be located. This adds `local/lib/perl5` to the process environment which is a safer bet.