change the regular expression to fix the issue #853 caused by PR #837

[sdghchj]

Describe the PR
Repair the regular expression for full response
fix #855

Relation issue
#853 , #855

[codecov]

Codecov Report

Merging #854 (7f6ef33) into master (98b8c70) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #854   +/-   ##
=======================================
  Coverage   84.83%   84.83%           
=======================================
  Files           8        8           
  Lines        1649     1649           
=======================================
  Hits         1399     1399           
  Misses        145      145           
  Partials      105      105           

Impacted Files	Coverage Δ
operation.go	87.66% <100.00%> (ø)

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[easonlin404]

@sdghchj May I know why this change can fix the #853 ?

[sdghchj]

@sdghchj May I know why this change can fix the #853 ?

For example:
400 "Failed to pass json schema"

The old RegExp ([\w,]+)[\s]+([\w\{\}]+)[\s]+([\w\-\.\/\{\}=,\[\]]+)[^"]*(.*)? will find a match Failed to pass json schema", and the 4 submatchs are Failed to pass " ，leading to run function ParseResponseComment.

So, it is necessary to match from the beginning, and make it run function ParseEmptyResponseComment.

The response description it's ok in the old test has a special character ' which mismatches the old RegExp.