The commands can be executed only by the '-c' option; the shell is not
interactive.
-Currently, only the `git-receive-pack` and `git-upload-pack` commands
-are permitted to be called, with a single required argument.
+Currently, only four commands are permitted to be called, 'git-receive-pack'
+'git-upload-pack' and 'git-upload-archive' with a single required argument, or
+'cvs server' (to invoke 'git-cvsserver').
Author
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