UPDATE: adding alternative format to logical list

  $ arcconf getconfig 1 ld
  ...

   Logical device segment information
   --------------------------------------------------------
   Group 0, Segment 0                       : Present (Controller:1,Enclosure:0,Slot:1)      WD-WMAW30289850
   Group 0, Segment 1                       : Present (Controller:1,Enclosure:0,Slot:2)      WD-WMAW30069103
   Group 1, Segment 0                       : Present (Controller:1,Enclosure:0,Slot:3)      WD-WMAW30192456
   Group 1, Segment 1                       : Present (Controller:1,Enclosure:0,Slot:4)      WD-WCAW32805052

  ...

  Existing regular expression was not able to figure out which drives were members of which array.
  Adding support for format like seen above
Merge pull request #3 from elops/fix/arcconf-disk-members

UPDATE: adding alternative format to logical list