perf tests stat+csv_summary: Fix unused variable references detected via shellcheck

Running shellcheck on stat+csv_summary.sh throws below warnings:

   In tests/shell/stat+csv_summary.sh line 26:
   while read num event run pct
              ^-^ SC2034 (warning): num appears unused. Verify use (or export if used externally).
                  ^---^ SC2034 (warning): event appears unused. Verify use (or export if used externally).
                        ^-^ SC2034 (warning): run appears unused. Verify use (or export if used externally).
                            ^-^ SC2034 (warning): pct appears unused. Verify use (or export if used externally).

These variables are intentionally unused since they are needed to parse
through the output. Use "_" as a prefix for these throw away variables.

Signed-off-by: Athira Rajeev <[email protected]>
Acked-by: Ian Rogers <[email protected]>
Cc: Disha Goel <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

0 files changed, 0 insertions, 0 deletions