It's valid for email field of authors and committers to be empty.

[ktbarrett]

This line should be changed

create-pull-request/src/utils.ts

Line 73 in eec7ab7

const pattern = /^([^<]+)\s*<([^>]+)>$/i

to this:

const pattern = /^([^<]+)\s*<([^>]*)>$/i 

to allow zero characters in the email match.