Replaced delimiter '_' with '#' in TZ sed expression to prevent errors processing timezones like 'America/New_York'

[cryptovaltt]

General information

Docker container related change.
Proposed change to docker entrypoint code.

Bug reports

Restarting docker container after successful run fails when timezone (env TZ) contains '_' in it.
As it was found here, the cause of the bug is using _ as delimiter in sed expression that prevents using such timezones as America/New_York.

Proposed changes

Replacing delimiter _ with # that does not exist in any curent IANA or POSIX timezone databases.

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