refactor: made some minor refactorings.

[RHSaliya]

I'm learning how to contribute to open-source projects. This is my first pull request. So, I have not made major changes.

[codecov-commenter]

Codecov Report

Merging #319 (0f20f4a) into master (1842b78) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##             master     #319   +/-   ##
=========================================
  Coverage     97.87%   97.87%           
  Complexity      549      549           
=========================================
  Files            11       11           
  Lines          1178     1178           
  Branches        204      204           
=========================================
  Hits           1153     1153           
  Misses           13       13           
  Partials         12       12           

Impacted Files	Coverage Δ
...rc/main/java/org/apache/commons/csv/CSVFormat.java	98.02% <100.00%> (ø)
...c/main/java/org/apache/commons/csv/CSVPrinter.java	95.78% <100.00%> (ø)
...rc/main/java/org/apache/commons/csv/Constants.java	100.00% <100.00%> (ø)

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[garydgregory]

This looks like a change for change's sake, without explanation, so -1 from me.

[RHSaliya]

Sorry, I will make more changes and make a pull request.

[garydgregory]

Hi @RHSaliya
-1: sorry but this looks like changes for changes sake.
You can look at Jira for bug reports and feature requests.

[garydgregory]

Closing: no reply.