refact: remove source from kneighbor/kout results & unify 'degree ' error info by imbajin · Pull Request #1463 · apache/hugegraph

@@             Coverage Diff              @@
##             master    #1463      +/-   ##
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+ Coverage     61.73%   62.17%   +0.43%     
- Complexity     5842     5864      +22     
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  Files           381      381              
  Lines         32177    32177              
  Branches       4504     4504              
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+ Hits          19866    20006     +140     
+ Misses        10265    10119     -146     
- Partials       2046     2052       +6