tiny improve auth code for exception message and typo

[zhoney]

Change-Id: I13ea2064851c3863e5db72979e3365a575d78d0f

[codecov]

Codecov Report

Merging #1563 (235fdf5) into master (634e4f9) will decrease coverage by 0.06%.
The diff coverage is 87.50%.

@@             Coverage Diff              @@
##             master    #1563      +/-   ##
============================================
- Coverage     63.14%   63.07%   -0.07%     
+ Complexity     6673     6667       -6     
============================================
  Files           417      417              
  Lines         34303    34301       -2     
  Branches       4740     4740              
============================================
- Hits          21660    21636      -24     
- Misses        10402    10426      +24     
+ Partials       2241     2239       -2     

Impacted Files	Coverage Δ
...main/java/com/baidu/hugegraph/auth/HugeAccess.java	85.18% <ø> (ø)
...main/java/com/baidu/hugegraph/auth/HugeBelong.java	84.84% <ø> (ø)
...ain/java/com/baidu/hugegraph/auth/HugeProject.java	85.24% <ø> (ø)
...in/java/com/baidu/hugegraph/auth/HugeResource.java	77.92% <0.00%> (-1.30%)	⬇️
.../java/com/baidu/hugegraph/auth/RolePermission.java	90.58% <ø> (-1.18%)	⬇️
...in/java/com/baidu/hugegraph/auth/SchemaDefine.java	76.10% <ø> (ø)
...n/java/com/baidu/hugegraph/auth/EntityManager.java	92.10% <100.00%> (-0.11%)	⬇️
.../com/baidu/hugegraph/auth/RelationshipManager.java	79.80% <100.00%> (-0.20%)	⬇️
.../com/baidu/hugegraph/auth/StandardAuthManager.java	92.81% <100.00%> (ø)
...ackend/store/cassandra/CassandraEntryIterator.java	72.46% <0.00%> (-10.15%)	⬇️
... and 6 more

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