Unified handling of ngx_create_temp_file() return value. The original check for NGX_AGAIN was surplus, since the function returns only NGX_OK or NGX_ERROR. Now it looks similar to other places. No functional changes.

# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


have=NGX_SUPPRESS_WARN . auto/have

have=NGX_SMP . auto/have