Fixed location of debug message in ngx_shmtx_lock().

src/core/ngx_shmtx.c

diff --git a/src/core/ngx_shmtx.c b/src/core/ngx_shmtx.c
index 6cf7af5..a62999f 100644
--- a/src/core/ngx_shmtx.c
+++ b/src/core/ngx_shmtx.c
@@ -117,11 +117,11 @@
                                   "sem_wait() failed while waiting on shmtx");
                     break;
                 }
-
-                ngx_log_debug0(NGX_LOG_DEBUG_CORE, ngx_cycle->log, 0,
-                               "shmtx awoke");
             }
 
+            ngx_log_debug0(NGX_LOG_DEBUG_CORE, ngx_cycle->log, 0,
+                           "shmtx awoke");
+
             continue;
         }