curl install gives error on ubuntu

Hi, I tried folowing the install instructions in the readme: https://github.com/git-ecosystem/git-credential-manager/blob/release/docs/install.md#install-from-source-helper-script
I installed curl.
Then tried: $ curl -L https://aka.ms/gcm/linux-install-source.sh | sh
I get the folowing output:

% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
This script will download, compile, and install Git Credential Manager to:

/usr/local/bin

Git Credential Manager is licensed under the MIT License: https://aka.ms/gcm/license
100 7552 100 7552 0 0 38867 0 --:--:-- --:--:-- --:--:-- 38867
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sh: 170: Syntax error: "fi" unexpected (expecting "then")

My system: Ubuntu 22.04.4 LTS
GNOME Version: 42.9

Start with the install-from-source helper-script section in docs/install.md and reproduce the command on Ubuntu 22.04.4. Trace the downloaded script's prompt and shell parsing around the reported line 170 error. Done means the documented curl command completes successfully without repeated prompts or a syntax error.