fix ngx_cpp_test_module configure

auto/modules

diff --git a/auto/modules b/auto/modules
index 36ed53f..89f53b7 100644
--- a/auto/modules
+++ b/auto/modules
@@ -392,7 +392,7 @@
 fi
 
 
-if [ $NGX_CPP_TEST_MODULE = YES ]; then
+if [ $NGX_CPP_TEST = YES ]; then
     NGX_MISC_SRCS="$NGX_MISC_SRCS $NGX_CPP_TEST_SRCS"
 fi
 

auto/options

diff --git a/auto/options b/auto/options
index b99e904..934edaa 100644
--- a/auto/options
+++ b/auto/options
@@ -209,7 +209,7 @@
         --without-mail_smtp_module)      MAIL_SMTP=NO               ;;
 
         --with-google_perftools_module)  NGX_GOOGLE_PERFTOOLS=YES   ;;
-        --with-cpp_test_module)          NGX_CPP_TEST_MODULE=YES    ;;
+        --with-cpp_test_module)          NGX_CPP_TEST=YES           ;;
 
         --add-module=*)                  NGX_ADDONS="$NGX_ADDONS $value" ;;