PHOENIX-4509 Fix performance.py usage text (Artem Ervits)
PHOENIX-4509 Fix performance.py usage text (Artem Ervits)

Signed-off-by: Josh Elser <08e628f9d7ca1b20fe79ef383bd8c50d12051375@apache.org>

apache/phoenix,ohadshacham/phoenix,growingio/phoenix,apache/phoenix,growingio/phoenix,apurtell/phoenix,apurtell/phoenix,apache/phoenix,ankitsinghal/phoenix,growingio/phoenix,ankitsinghal/phoenix,apurtell/phoenix,growingio/phoenix,ankitsinghal/phoenix,apurtell/phoenix,apache/phoenix,apurtell/phoenix,ohadshacham/phoenix,ankitsinghal/phoenix,ohadshacham/phoenix,ankitsinghal/phoenix,twdsilva/phoenix,twdsilva/phoenix,twdsilva/phoenix,apache/phoenix,twdsilva/phoenix,twdsilva/phoenix,ohadshacham/phoenix,ohadshacham/phoenix,growingio/phoenix