Do not clober group membership

[atward]

The group inside the weblogic resource clobbers group members. It replaces the list of members with an empty set. oracle-inventory::default then appends a user which results in the group resource always running in both locations on every chef run.

  * weblogic[12.1.3.0.0] action create
    * group[weblogic_admin] action create
      - alter group weblogic_admin
      - replace group members with new list of members
    * linux_user[weblogic] action create (up to date)
  Recipe: oracle-inventory::default
    * group[weblogic_admin] action create (up to date)
    * linux_user[weblogic] action create (up to date)
    * directory[/ortlapp/inventory] action create (up to date)
    * template[/ortlapp/oraInst.loc] action create (up to date)
    * group[weblogic_admin] action create
      - alter group weblogic_admin
      - add missing member(s): weblogic
    * directory[/var/cache/chef/weblogic] action create (up to date)
    * directory[/ortlapp/middleware] action create (up to date)
    * remote_file[/var/cache/chef/weblogic/fmw_12.1.3.0.0_wls.jar] action create (up to date)
    * template[/var/cache/chef/weblogic/silent.rsp] action create (up to date)
    * execute[install weblogic server 12.1.3.0.0] action run (skipped due to only_if)

This change permits current membership whilst ensuring the group exists. Group membership should not matter, group is only used for gid on user.

  * weblogic[12.1.3.0.0] action create
    * group[weblogic_admin] action create (up to date)
    * linux_user[weblogic] action create (up to date)
  Recipe: oracle-inventory::default
    * group[weblogic_admin] action create (up to date)
    * linux_user[weblogic] action create (up to date)
    * directory[/ortlapp/inventory] action create (up to date)
    * template[/ortlapp/oraInst.loc] action create (up to date)
    * group[weblogic_admin] action create (up to date)
    * directory[/var/cache/chef/weblogic] action create (up to date)
    * directory[/ortlapp/middleware] action create (up to date)
    * remote_file[/var/cache/chef/weblogic/fmw_12.1.3.0.0_wls.jar] action create (up to date)
    * template[/var/cache/chef/weblogic/silent.rsp] action create (up to date)
    * execute[install weblogic server 12.1.3.0.0] action run (skipped due to only_if)

[richardlock]

Thanks Adam.