Re: [PATCH v10 0/4] Add cat-file --batch-command flag

> The feature proposal of adding a command interface to cat-file was first
> discussed in [A]. In [B], Taylor expressed the need for a fuller proposal
> before moving forward with a new flag. An RFC was created [C] and the idea
> was discussed more thoroughly, and overall it seemed like it was headed in
> the right direction.
> 
> This patch series consolidates the feedback from these different threads.
> 
> This patch series has four parts:
> 
>   1. preparation patch to rename a variable
>   2. adding an enum to keep track of batch modes
>   3. add a remove_timestamp() helper that takes stdin and removes timestamps
>   4. logic to handle --batch-command flag, adding contents, info, flush
>      commands
> 
> Changes since v9
> 
>   * add test to exercise format for batch-command
>   * minor semantic improvements
>   * removed README entry for environment variable used in test