* modules/jenkins/files/slave_scripts/run-unittests.sh: Generating html
from subunit v1 files is much slower than generating them from subunitv2
files because parsing v2 with the v2 parser is much faster than parsing
v1 with the v2 parser and feeding the leftovers through a v1 parser.
Due to this time difference convert v1 files to v2 before parsing them
to generate html.
Change-Id: I7264d68089fb40de62e47660fe1f31c9adcabdb0
000952cd89