style(@angular/cli): fix INITIAL_COMMIT_MESSAGE

[scmx]

Git commit messages should always have a blank line after the title.

[hansl]

LGTM, thanks!

[scmx]

Otherwise git branch -v will act very strange

$ git branch -v
master 08edefe chore: initial commit from angular-cli _ _ _ __ _ _ __ __ _ _ | | __ _ _ __ | () / _ | _ \ / _ | | | | |/ _ | | / __| | | | (| | | | | (| | || | | (| | | || (| | | _|| ||_ |_||_|| _||| |_/

My editor wanted me to add a newline at the end of file and remove trailing whitespace as well

[scmx]

@hansl wow, that was fast 🚀 🚤

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