Move some env_parallel code into the else branch (#1432)

Co-authored-by: Gulshan Singh <gsgx@google.com>

tests/gdb-tests/tests.sh

@@ -147,6 +147,13 @@ parse_output_file() {
     fi
 }
 
+start=$(date +%s)
+
+if [ $SERIAL -eq 1 ]; then
+    for t in "${TESTS_LIST[@]}"; do
+        run_test "$t"
+    done
+else
     JOBLOG_PATH="$(mktemp)"
     echo ""
     echo -n "Running tests in parallel and using a joblog in $JOBLOG_PATH"
@@ -159,13 +166,6 @@ fi
 
     . $(which env_parallel.bash)
 
-start=$(date +%s)
-
-if [ $SERIAL -eq 1 ]; then
-    for t in "${TESTS_LIST[@]}"; do
-        run_test "$t"
-    done
-else
     env_parallel --output-as-files --joblog $JOBLOG_PATH run_test ::: "${TESTS_LIST[@]}" | env_parallel parse_output_file {}
 fi