[#207] fix wrongly detected puzzle body

[mbao01]

• use spaces as indentation for puzzle body when no line comment prefix is found

[mbao01]

@yegor256 please review

[codecov]

Codecov Report

Merging #208 (f09c8bc) into master (cd166ee) will increase coverage by 0.02%.
The diff coverage is 100.00%.

❗ Current head f09c8bc differs from pull request most recent head ba4b803. Consider uploading reports for the commit ba4b803 to get more accurate results

@@            Coverage Diff             @@
##           master     #208      +/-   ##
==========================================
+ Coverage   95.75%   95.77%   +0.02%     
==========================================
  Files          10       10              
  Lines         353      355       +2     
==========================================
+ Hits          338      340       +2     
  Misses         15       15              

Impacted Files	Coverage Δ
lib/pdd/source.rb	99.16% <100.00%> (+0.01%)	⬆️

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[yegor256]

@rultor merge

[rultor]

@rultor merge

@yegor256 OK, I'll try to merge now. You can check the progress of the merge here

[rultor]

@rultor merge

@yegor256 Done! FYI, the full log is here (took me 1min)

[yegor256]

@rultor release, tag is 0.21.1

[rultor]

@rultor release, tag is 0.21.1

@yegor256 OK, I will release it now. Please check the progress here

[rultor]

@rultor release, tag is 0.21.1

@yegor256 Done! FYI, the full log is here (took me 2min)

[yegor256]

@mbao01 thanks!