ROS2|The unauthenticated git protocol on port 9418 is no longer supported.

【ROS2|The unauthenticated git protocol on port 9418 is no longer supported.】git commond:git clone -b 8.2.6 git://github.com/ros2/rviz.git
Cloning into 'rviz'...
fatal: remote error:
The unauthenticated git protocol on port 9418 is no longer supported.
Please see https://github.blog/2021-09-01-improving-git-protocol-security-github/ for more information.
git commond:git clone -b 1.1.3 git://github.com/ros2/spdlog_vendor.git

解决办法:
git config --global url."https://".insteadOf git://

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