4a88d44ab1 ("tracing: Remove mentioning of legacy latency_trace file
from documentation") changed a sentence to refer to only one file
instead of two, but the sentence still uses "they". Fix it.
Signed-off-by: Rabin Vincent <[email protected]>
Acked-by: Steven Rostedt <[email protected]>
Signed-off-by: Jonathan Corbet <[email protected]>