I find myself copy and pasting the commands out of the previous change, looking in the squash change for the SHAs and descriptions, and amending the top merge change with all this info. It's tedious.

This script does all of this with a one-liner.

Bug: b/140546382
Change-Id: I2ecfd8074b053cbf6de4001a56bca2ffbaccba42
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/41230
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Tested-by: Ben Clayton <bclayton@google.com>