Fix to avoid duplicate error message

[Tommo-L]

Fix #672 (comment)

[superboyiii]

Tested. Pass.
Works well on mine.

neo> invoke 0x254b9decd76080ef368e7a6b0a065938dfbc31cf destroy [] 0x9f2dd7df630980dce111d3b31ebe35d3cfae58cd 0x9f2dd7df630980dce111d3b31ebe35d3cfae58cd
Invoking script with: 'EMAMB2Rlc3Ryb3kMFM8xvN84WQYKa3qONu+AYNfsnUslQWJ9W1I='
VM State: FAULT
Gas Consumed: 0.0132447
Result Stack: []
Error: An unhandled exception was thrown. No authorization.
neo> balanceOf 0x254b9decd76080ef368e7a6b0a065938dfbc31cf  0x9f2dd7df630980dce111d3b31ebe35d3cfae58cd
Invoking script with: 'DBTNWK7P0zW+HrPTEeHcgAlj39ctnxHADAliYWxhbmNlT2YMFM8xvN84WQYKa3qONu+AYNfsnUslQWJ9W1I='
VM State: HALT
Gas Consumed: 0.0384084
Result Stack: [{"type":"Integer","value":"0"}]

NEP5 TEST TOKEN balance: 0
neo> balanceOf 0x254b9decd76080ef368e7a6b0a065938dfbc31cf  NLtDqwnj9s7wQVyaiD5ohjV3e9fUVkZxDp
Invoking script with: 'DBQKo4e1Ppa3mJpjFDGgVt0fQKBC9hHADAliYWxhbmNlT2YMFM8xvN84WQYKa3qONu+AYNfsnUslQWJ9W1I='
VM State: HALT
Gas Consumed: 0.0384069
Result Stack: [{"type":"Integer","value":"2000000000000000"}]

NEP5 TEST TOKEN balance: 20000000
neo> balanceOf 0x254b9decd76080ef368e7a6b0a065938dfbc31cf  0x9f2dd7df630980dce111d3b31ebe35d3cfae58cc
Invoking script with: 'DBTMWK7P0zW+HrPTEeHcgAlj39ctnxHADAliYWxhbmNlT2YMFM8xvN84WQYKa3qONu+AYNfsnUslQWJ9W1I='
VM State: HALT
Gas Consumed: 0.0384084
Result Stack: [{"type":"Integer","value":"0"}]

NEP5 TEST TOKEN balance: 0
neo> balanceOf 0x254b9decd76080ef368e7a6b0a065938dfbc31cd  0x9f2dd7df630980dce111d3b31ebe35d3cfae58cc
error: Value does not fall within the expected range.
neo> get candidates
Invoking script with: 'EMAMDWdldENhbmRpZGF0ZXMMFCUFnstIeNOodfkcUc7e0zDUV1/eQWJ9W1I='
VM State: HALT
Gas Consumed: 1.0100757

Candidates:
02f82fffd7de30e923230bcded2c3cd5bec8572e7ebacbddb9f33a2a5d26934b8b      100000000
neo> get committee
Invoking script with: 'EMAMDGdldENvbW1pdHRlZQwUJQWey0h406h1+RxRzt7TMNRXX95BYn1bUg=='
VM State: HALT
Gas Consumed: 1.0100757

Committee:
02f82fffd7de30e923230bcded2c3cd5bec8572e7ebacbddb9f33a2a5d26934b8b
neo> get next validators
Invoking script with: 'EMAMFmdldE5leHRCbG9ja1ZhbGlkYXRvcnMMFCUFnstIeNOodfkcUc7e0zDUV1/eQWJ9W1I='
VM State: HALT
Gas Consumed: 1.0100757

Next validators:
02f82fffd7de30e923230bcded2c3cd5bec8572e7ebacbddb9f33a2a5d26934b8b
neo> invoke 0x254b9decd76080ef368e7a6b0a065938dfbc31cf deploy [] 0xf642a0401fdd56a03114639a98b7963eb587a30a 0xf642a0401fdd56a03114639a98b7963eb587a30a
Invoking script with: 'EMAMBmRlcGxveQwUzzG83zhZBgpreo4274Bg1+ydSyVBYn1bUg=='
VM State: FAULT
Gas Consumed: 0.0380934
Result Stack: []
Error: An unhandled exception was thrown. Contract has been deployed.
neo> name 0x254b9decd76080ef368e7a6b0a065938dfbc31cf
Invoking script with: 'EMAMBG5hbWUMFM8xvN84WQYKa3qONu+AYNfsnUslQWJ9W1I='
VM State: HALT
Gas Consumed: 0.0125022
Result Stack: [{"type":"ByteString","value":"TkVQNSBURVNUIFRPS0VO"}]
Result : NEP5 TEST TOKEN
neo> name 0x254b9decd76080ef368e7a6b0a065938dfbc31c
You can call this command like this:
        name <tokenHash>
neo> name 0x254b9decd76080ef368e7a6b0a065938dfbc31cd
Invoking script with: 'EMAMBG5hbWUMFM0xvN84WQYKa3qONu+AYNfsnUslQWJ9W1I='
VM State: FAULT
Gas Consumed: 0.0100739
Result Stack: []
Error: Called Contract Does Not Exist: 0x254b9decd76080ef368e7a6b0a065938dfbc31cd
neo> decimals 0x254b9decd76080ef368e7a6b0a065938dfbc31cf
Invoking script with: 'EMAMCGRlY2ltYWxzDBTPMbzfOFkGCmt6jjbvgGDX7J1LJUFifVtS'
VM State: HALT
Gas Consumed: 0.0125007
Result Stack: [{"type":"Integer","value":"8"}]
Result : 8
neo> decimals 0x254b9decd76080ef368e7a6b0a065938dfbc31ch
You can call this command like this:
        decimals <tokenHash>
neo> decimals 0x254b9decd76080ef368e7a6b0a065938dfbc31cd
Invoking script with: 'EMAMCGRlY2ltYWxzDBTNMbzfOFkGCmt6jjbvgGDX7J1LJUFifVtS'
VM State: FAULT
Gas Consumed: 0.0100739
Result Stack: []
Error: Called Contract Does Not Exist: 0x254b9decd76080ef368e7a6b0a065938dfbc31cd