[njs] Fixed building by GCC with -O3.

[Vadim Zhestikov]

details:   https://hg.nginx.org/njs/rev/c0f581b26e84
branches:  
changeset: 2185:c0f581b26e84
user:      Vadim Zhestikov <v.zhestikov at f5.com>
date:      Wed Aug 23 10:09:22 2023 -0700
description:
Fixed building by GCC with -O3.

diffstat:

 src/njs_array.c |  3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diffs (13 lines):

diff -r f1bd0b1db065 -r c0f581b26e84 src/njs_array.c
--- a/src/njs_array.c	Tue Aug 22 11:13:09 2023 -0700
+++ b/src/njs_array.c	Wed Aug 23 10:09:22 2023 -0700
@@ -2952,6 +2952,9 @@ njs_array_prototype_sort(njs_vm_t *vm, n
         return ret;
     }
 
+    /* Satisfy gcc -O3 */
+    nslots = 0;
+
     slots = njs_sort_indexed_properties(vm, this, length, compare, 1, &nslots,
                                         &nunds);
     if (njs_slow_path(slots == NULL)) {