fix: restore suite in classname for old XML

[jason-ha]

Fix #179
@jpaulin @dignifiedquire

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[jpaulin]

Yep, definitely a bug in my original code.

[jason-ha]

@googlebot I signed it!

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[jason-ha]

@jpaulin Is there someone you can recommend I ping to finish this up? Thanks

[jpaulin]

@dignifiedquire Hi, ping, do you happen to know anyone who's got rights to merge PRs into master in Karma's karma-junit-reporter? I'm kind of also left in the chasm of couple of years in between. This PR here is about a small one bug fix. This PR fixes
a bug that caused inaccurate reporting to Sonar. Thanks! /J

[joeyparrish]

I apologize this project is not better maintained. I was granted write access, but I don't have a lot of experience in this project and I am also not actively maintaining it.

[jason-ha]

Thanks @joeyparrish. Just happy to have the fix in.

[jason-ha]

@joeyparrish One more request. Can you create a release? (I thought there was one since releases say latest release in Oct 7., but then I notice that year is 2019. So we need one for this year.) Thanks.