Multipath 'user friendly names' not working for storage.

Issue

• Multipath configuration parameter user friendly names not working for storage even after adding "device" section for the Storage in /etc/multipath.conf file. This storage does not have default compiled in multipath configuration like other storage devices in the configuration file /usr/share/doc/device-mapper-multipath-0.4.7/multipath.conf.defaults.
• Added "device" section for the "PURE FlashArray" storage configuration as per Is there a standard dm-multipath configuration for PURE storage?, but the 'user_friendly_names' parameter doesn't work and multipath -ll shows the WWID for the LUNs.

36241234568810c63ddc6232100011779 dm-2 PURE,FlashArray
  size=50G features='0' hwhandler='0' wp=rw
  `-+- policy='queue-length 0' prio=1 status=active
    |- 1:0:0:1 sdb 8:16  active ready running
    |- 1:0:1:1 sdd 8:48  active ready running
    |- 1:0:2:1 sdf 8:80  active ready running
    |- 1:0:3:1 sdh 8:112 active ready running
    |- 2:0:0:1 sdl 8:176 active ready running
    |- 2:0:1:1 sdn 8:208 active ready running
    |- 2:0:2:1 sdp 8:240 active ready running
    `- 2:0:3:1 sdr 65:16 active ready running