perf tests stat+json_output: Address shellcheck warnings

Running shellcheck on stat+json_output testcase, generates below warning:

	 [ $(id -u) != 0 ] && [ $(cat /proc/sys/kernel/perf_event_paranoid) -gt $1 ]
           ^------^ SC2046 (warning): Quote this to prevent word splitting.
                                ^-- SC2046 (warning): Quote this to prevent word splitting.

Fixed the warning by adding quotes to avoid word splitting.

ShellCheck result with patch:
	 # shellcheck -S warning stat+json_output.sh
	 #

perf test result after the change:
	 94: perf stat JSON output linter : Ok

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

1 files changed, 1 insertions, 1 deletions

diff --git a/tools/perf/tests/shell/stat+json_output.sh b/tools/perf/tests/shell/stat+json_output.sh
index c282afa6217c..196e22672c50 100755
--- a/tools/perf/tests/shell/stat+json_output.sh
+++ b/tools/perf/tests/shell/stat+json_output.sh
@@ -40,7 +40,7 @@ trap trap_cleanup EXIT TERM INT
 # Return true if perf_event_paranoid is > $1 and not running as root.
 function ParanoidAndNotRoot()
 {
-	 [ $(id -u) != 0 ] && [ $(cat /proc/sys/kernel/perf_event_paranoid) -gt $1 ]
+	 [ "$(id -u)" != 0 ] && [ "$(cat /proc/sys/kernel/perf_event_paranoid)" -gt $1 ]
 }
 
 check_no_args()