tree ed7d2fdf71f726f8aa2b1722a6fa2389e826babd
parent a1a613185a229a7b43adc6009ca7d55231b563b1
author Mika Eloranta <mel@ohmu.fi> 1405882976 +0300
committer Mika Eloranta <mel@ohmu.fi> 1408277404 +0300

Optional default values from environment variables

Tags `env:"VARIABLE_NAME"` and `env-delim:"DELIM_STRING"` can
be optionally specified to get the option default value from
the corresponding environment variable.

The delimiter, if one is defined, is used to split the value
to multiple strings, making it possible to define default values
for both slices and maps thru the environment.