Getenv is similar to os.Getenv, but *always* requests the variable from C's getenv
Note: If you rely on this value being consistent, you must use this package's other env functions as well
Setenv is similar to os.Setenv, but ensures consistent results for env.Getenv
Note: If you rely on this value being consistent, you must use this package's other env functions as well
Unsetenv is similar to os.Unsetenv, but ensures consistent results for env.Getenv
Note: If you rely on this value being consistent, you must use this package's other env functions as well.