fix: correct some errant variable references

Signed-off-by: Sam Stuewe <[email protected]>

Author: HalosGhost

scripts/native-system-benchmark.sh

@@ -179,7 +179,7 @@ on_int() {
     printf 'Interrupting all components\n'
     trap '' SIGINT # avoid interrupting ourself
     for i in $PIDS; do # intentionally unquoted
-        if [[ -n "RECORD" ]]; then
+        if [[ -n "$RECORD" ]]; then
             kill -SIGINT -- "-$i"
         else
             kill -SIGINT -- "$i"
@@ -220,7 +220,7 @@ on_int() {
 
     printf 'Terminating any remaining processes\n'
     for i in $PIDS; do # intentionally unquoted
-        if [[ -n "RECORD" ]]; then
+        if [[ -n "$RECORD" ]]; then
             kill -SIGTERM -- "-$i"
         else
             kill -SIGTERM -- "$i"
@@ -350,7 +350,7 @@ launch() {
                         "$RT"/scripts/wait-for-it.sh -q -t 5 -h localhost -p "$ep"
                     done
                     printf 'Launched logical %s %d, replica %d [PID: %d]\n' "$1" "$id" "$node" "$PID"
-                    if [[ -n "RECORD" ]]; then
+                    if [[ -n "$RECORD" ]]; then
                         PIDS="$PIDS $(getpgid $PID)"
                     else
                         PIDS="$PIDS $PID"
@@ -363,7 +363,7 @@ launch() {
                     "$RT"/scripts/wait-for-it.sh -q -t 5 -h localhost -p "$ep"
                 done
                 printf 'Launched %s %d [PID: %d]\n' "$1" "$id" "$PID"
-                if [[ -n "RECORD" ]]; then
+                if [[ -n "$RECORD" ]]; then
                     PIDS="$PIDS $(getpgid $PID)"
                 else
                     PIDS="$PIDS $PID"