Fix doubled (duplicated) words in trace documentation. Cc: Jonathan Corbet <corbet@xxxxxxx> Cc: linux-doc@xxxxxxxxxxxxxxx Cc: Steven Rostedt <rostedt@xxxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx> Documentation/trace/ftrace.rst | 4 ++-- Documentation/trace/histogram-design.rst | 4 ++-- Documentation/trace/stm.rst | 4 ++-- 3 files changed, 6 insertions(+), 6 deletions(-)