Fix function protypes for clang errors

clang-15+ has started diagnosing them as errors

thread.c:925:18: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
| void STATS_UNLOCK() {
|                  ^
|                   void

Signed-off-by: Khem Raj <raj.khem@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/assoc.c b/assoc.c
index bc68695..01063a9 100644
--- a/assoc.c
+++ b/assoc.c
@@ -261,7 +261,7 @@ static void *assoc_maintenance_thread(void *arg) {
 
 static pthread_t maintenance_tid;
 
-int start_assoc_maintenance_thread() {
+int start_assoc_maintenance_thread(void) {
     int ret;
     char *env = getenv("MEMCACHED_HASH_BULK_MOVE");
     if (env != NULL) {
@@ -279,7 +279,7 @@ int start_assoc_maintenance_thread() {
     return 0;
 }
 
-void stop_assoc_maintenance_thread() {
+void stop_assoc_maintenance_thread(void) {
     mutex_lock(&maintenance_lock);
     do_run_maintenance_thread = 0;
     pthread_cond_signal(&maintenance_cond);