tree 28405d7dea33c5cfeb31554ce6de8bc9253e1d25
parent bfaa3e86080c17c49dbca0d2c034e1d30b415fad
author YoungSeok Yoon <youngseokyoon@google.com> 1457060451 -0800
committer YoungSeok Yoon <youngseokyoon@google.com> 1459542005 -0700

devtools/madb: use JSON for storing nicknames.

Use 'encoding/json' package to store the nickname data of type
'map[string]string' in JSON.

Change-Id: Ib1b89a4952238ea75f825086d22cdc9c9395f1bf