fix attempt to launch coins/gleec_7776 twice

iguana/add_coins

@@ -10,7 +10,7 @@ coins/kmd_7776
 coins/ltc_7776
 
 # Loop through assetchains.json and build the path to the appropriate coins file and run it.
-./listassetchains | while read chain; do
+./listassetchains | sort | uniq | while read chain; do
     coin="coins/$(echo $chain | awk '{print tolower($0)}')_7776"
     $coin
 done