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2021-01-15environment: make `getenv_safe()` a public functionLibravatar Patrick Steinhardt1-0/+12
The `getenv_safe()` helper function helps to safely retrieve multiple environment values without the need to depend on platform-specific behaviour for the return value's lifetime. We'll make use of this function in a following patch, so let's make it available by making it non-static and adding a declaration. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>