Usability issue - class/method names too long!

[dsvellal]

Reported by one of the teams using JCMD-DIFF, the output generates a column called "CLASS", content of the class is more often than not, too long to read! This creates a distortion, where the necessary values (before/after/metrics) are pushed to the extreme right, and we are unable to easily view the output.

Since the filename is sufficient, i think skipping class would help in improving readability of the generated output!