Associates a list of string values for key under group_name. If key cannot be found then it is created. If group_name cannot be found then it is created. Since 2.6
a group name
a key
an array of string values. [array zero-terminated=1 length=length][element-type utf8]
See Implementation
Associates a list of string values for key under group_name. If key cannot be found then it is created. If group_name cannot be found then it is created. Since 2.6