Fix comment typo in etl/perf.py (#2654)
Fix comment typo in etl/perf.py (#2654)


KWierso/treeherder,tojon/treeherder,tojonmz/treeherder,edmorley/treeherder,edmorley/treeherder,tojonmz/treeherder,tojon/treeherder,KWierso/treeherder,tojonmz/treeherder,edmorley/treeherder,KWierso/treeherder,tojon/treeherder,tojonmz/treeherder,KWierso/treeherder,tojonmz/treeherder,edmorley/treeherder,tojonmz/treeherder,tojon/treeherder