Bugfix. Broken autofix for top-level block comment with multiline text

[aktsay6]

What's done:

• Fixed bug

This pull request closes #651 #649

[codecov]

Codecov Report

Merging #661 (b41d6af) into master (f74d7ff) will increase coverage by 0.02%.
The diff coverage is 92.85%.

@@             Coverage Diff              @@
##             master     #661      +/-   ##
============================================
+ Coverage     79.23%   79.26%   +0.02%     
- Complexity     1799     1803       +4     
============================================
  Files            87       87              
  Lines          4695     4706      +11     
  Branches       1508     1510       +2     
============================================
+ Hits           3720     3730      +10     
  Misses          280      280              
- Partials        695      696       +1     

Flag	Coverage Δ	Complexity Δ
unittests	79.26% <92.85%> (+0.02%)	0.00 <4.00> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ	Complexity Δ
...diktat/ruleset/rules/comments/HeaderCommentRule.kt	84.37% <92.85%> (+0.84%)	42.00 <4.00> (+4.00)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update f74d7ff...b41d6af. Read the comment docs.

[kentr0w]

Look at this issue, I think you can fix it in this PR

[petertrr]

LGTM