Apply code style fixes

[glensc]

Minor code style fixes done with help of php-cs-fixer.

[aik099]

1. Is this related any of existing issues?
2. Does the PHP_CodeSniffer check (see CONTRIBUTING.md) now pass?

[glensc]

1. not directly. i was about to make changes, but noticed is_null in place
2. i don't use the tool. shouldn't travis complain on this?

[aik099]

1. not directly. i was about to make changes, but noticed is_null in place

I see.

2. i don't use the tool. shouldn't travis complain on this?

It's not doing that currently. It makes sense to do only, when we fix all existing issues to avoid all new build be broken by default.

[glensc]

checked vendor/bin/phpcs, the changes here are not related.

[aik099]

Maybe can combine all CS fixes into single PR? I've just updated composer.json and composer.lock to ensure that used CS is compatible with latest PHP_CodeSniffer version.

PHP_CodeSniffer also does support auto-fixing of most, but not all issues found.

If you're using PhpStorm, then you configure it to automatically highlight problematic places.

We're not using Scrutinizer CI or otherwise it will be showing CS issues online as well.

[glensc]

You can squash merge from GitHub web UI if you have enabled that in project. If that's what you mean by single commit.

[glensc]

At this moment, I do not plan to make more CS fixes.

[aik099]

If no more CS fixes are planned, then please adjust your fixes to match existing coding standard.

[codecov]

Codecov Report

Attention: Patch coverage is 87.50000% with 1 line in your changes missing coverage. Please review.

Project coverage is 62.18%. Comparing base (3958a27) to head (8833122).
Report is 4 commits behind head on master.

Files with missing lines	Patch %	Lines
src/Jira/Api.php	75.00%	1 Missing ⚠️

Additional details and impacted files

@@ Coverage Diff @@ ## master #184 +/- ## ========================================= Coverage 62.18% 62.18% Complexity 205 205 ========================================= Files 10 10 Lines 669 669 ========================================= Hits 416 416 Misses 253 253 

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[aik099]

Merging, thanks @glensc .