Map: simplified "map" block parser.

No functional changes.

src/http/modules/ngx_http_map_module.c

diff --git a/src/http/modules/ngx_http_map_module.c b/src/http/modules/ngx_http_map_module.c
index 732aa5d..3239343 100644
--- a/src/http/modules/ngx_http_map_module.c
+++ b/src/http/modules/ngx_http_map_module.c
@@ -393,8 +393,9 @@
     {
         ctx->hostnames = 1;
         return NGX_CONF_OK;
+    }
 
-    } else if (cf->args->nelts != 2) {
+    if (cf->args->nelts != 2) {
         ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
                            "invalid number of the map parameters");
         return NGX_CONF_ERROR;

src/stream/ngx_stream_map_module.c

diff --git a/src/stream/ngx_stream_map_module.c b/src/stream/ngx_stream_map_module.c
index 47a15be..e65c70c 100644
--- a/src/stream/ngx_stream_map_module.c
+++ b/src/stream/ngx_stream_map_module.c
@@ -392,8 +392,9 @@
     {
         ctx->hostnames = 1;
         return NGX_CONF_OK;
+    }
 
-    } else if (cf->args->nelts != 2) {
+    if (cf->args->nelts != 2) {
         ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
                            "invalid number of the map parameters");
         return NGX_CONF_ERROR;