Fix arc patch PHP 8.1 strlen(null) error
Fix arc patch PHP 8.1 strlen(null) error.
When doing an 'arc patch Dxxxx' against a diff on a PHP 8.1 Phorge server we get a strlen(null) error.
Updating the idx call to provide a default empty string resolves it.
Providing a default empty string to
Test Plan: arc patch Dxxxx
Reviewers: O1 Blessed Committers, avivey
Reviewed By: O1 Blessed Committers, avivey
Subscribers: speck, tobiaswiese, valerio.bozzolan, Matthew, Cigaryno
Maniphest Tasks: T15571
Differential Revision: https://we.phorge.it/D25364