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Document the environment variables used by grep. ``` ------------------------ >8 ------------------------ Do not commit the comment below. ``` Inspired by D37702, document, even if minimally, the environment variables used by grep. Not sure of the correct placement of this section within the manual. Thank you!

Document the environment variables used by grep. ``` ------------------------ >8 ------------------------ Do not commit the comment below. ``` Inspired by D37702, document, even if minimally, the environment variables used by grep. Thank you!

Document the environment variables used by grep. ``` ------------------------ >8 ------------------------ Do not commit the comment below. ``` Inspired by D37702, document, even if minimally, the environment variables used by grep. Not sure of the correct placement of this section within the manual. Thank you!