make code more obviuos

src/http/modules/ngx_http_proxy_module.c

diff --git a/src/http/modules/ngx_http_proxy_module.c b/src/http/modules/ngx_http_proxy_module.c
index 21a555c..94ef736 100644
--- a/src/http/modules/ngx_http_proxy_module.c
+++ b/src/http/modules/ngx_http_proxy_module.c
@@ -1188,6 +1188,7 @@
 static ngx_int_t
 ngx_http_proxy_process_status_line(ngx_http_request_t *r)
 {
+    size_t                 len;
     ngx_int_t              rc;
     ngx_http_upstream_t   *u;
     ngx_http_proxy_ctx_t  *ctx;
@@ -1238,15 +1239,15 @@
 
     u->headers_in.status_n = ctx->status.code;
 
-    u->headers_in.status_line.len = ctx->status.end - ctx->status.start;
-    u->headers_in.status_line.data = ngx_pnalloc(r->pool,
-                                                 u->headers_in.status_line.len);
+    len = ctx->status.end - ctx->status.start;
+    u->headers_in.status_line.len = len;
+
+    u->headers_in.status_line.data = ngx_pnalloc(r->pool, len);
     if (u->headers_in.status_line.data == NULL) {
         return NGX_ERROR;
     }
 
-    ngx_memcpy(u->headers_in.status_line.data, ctx->status.start,
-               u->headers_in.status_line.len);
+    ngx_memcpy(u->headers_in.status_line.data, ctx->status.start, len);
 
     ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
                    "http proxy status %ui \"%V\"",

src/http/modules/ngx_http_uwsgi_module.c

diff --git a/src/http/modules/ngx_http_uwsgi_module.c b/src/http/modules/ngx_http_uwsgi_module.c
index c137dbd..b547683 100644
--- a/src/http/modules/ngx_http_uwsgi_module.c
+++ b/src/http/modules/ngx_http_uwsgi_module.c
@@ -866,6 +866,7 @@
 static ngx_int_t
 ngx_http_uwsgi_process_status_line(ngx_http_request_t *r)
 {
+    size_t                 len;
     ngx_int_t              rc;
     ngx_http_upstream_t   *u;
     ngx_http_status_t     *status;
@@ -898,15 +899,15 @@
 
     u->headers_in.status_n = status->code;
 
-    u->headers_in.status_line.len = status->end - status->start;
-    u->headers_in.status_line.data = ngx_pnalloc(r->pool,
-                                                 u->headers_in.status_line.len);
+    len = status->end - status->start;
+    u->headers_in.status_line.len = len;
+
+    u->headers_in.status_line.data = ngx_pnalloc(r->pool, len);
     if (u->headers_in.status_line.data == NULL) {
         return NGX_ERROR;
     }
 
-    ngx_memcpy(u->headers_in.status_line.data, status->start,
-               u->headers_in.status_line.len);
+    ngx_memcpy(u->headers_in.status_line.data, status->start, len);
 
     ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
                    "http uwsgi status %ui \"%V\"",