Strikethrough text not supported

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• iTerm2 version: 3.0.8
• OS version: OS X 10.11.6
• Preferences: com.googlecode.iterm2.plist

Detailed steps to reproduce the problem:

1. run echo -e "\e[9mstrikethrough\e[0m" at the prompt
2. press enter

What happened: The output is regular text

What should have happened: The output should be strikethrough. This is an issue with git 2.10 and the new support for strikethrough text in diffs with git config --global diff.color.old "red strike"