Add copyright statement to remodel feature file
Add copyright statement to remodel feature file

Summary: Add copyright statement to the `iglistdiffable.feature` file.

Reviewed By: calimarkus

Differential Revision: D15768452

fbshipit-source-id: 67bd21b7fbd9e13712b00f529ae4ce9ea118b341

Instagram/IGListKit,Instagram/IGListKit,Instagram/IGListKit,Instagram/IGListKit,Instagram/IGListKit