Fix prefixes

Author: ysakasin

lib/bcdice_api/app.rb

@@ -80,7 +80,7 @@ def diceroll(system, command)
         'name' => dicebot::NAME,
         'gameType' => dicebot::ID,
         'sortKey' => dicebot::SORT_KEY,
-        'prefixs' => dicebot.prefixes_pattern,
+        'prefixs' => dicebot.prefixes,
         'info' => dicebot::HELP_MESSAGE
       }
 

test/test_api.rb

@@ -57,7 +57,7 @@ def test_systeminfo
     assert json['systeminfo']
     assert_equal json['systeminfo']['gameType'], 'DiceBot'
     assert_false json['systeminfo']['name'].empty?
-    assert       json['systeminfo']['prefixs']
+    assert_instance_of Array, json['systeminfo']['prefixs']
 
     pend 'DiceBot::HELP_MESSAGE will be supported in BCDice v3'
     assert_false json['systeminfo']['info'].empty?