(add2panelize_cmd): minor optimization and type accuracy.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>

src/filemanager/panelize.c

@@ -259,21 +259,16 @@ add2panelize (char *label, char *command)
 static void
 add2panelize_cmd (void)
 {
+    if (pname->buffer != NULL && *pname->buffer != '\0')
+    {
         char *label;
 
-    if (pname->buffer && (*pname->buffer))
-    {
         label = input_dialog (_("Add to external panelize"),
                               _("Enter command label:"), MC_HISTORY_FM_PANELIZE_ADD, "",
                               INPUT_COMPLETE_NONE);
-        if (!label)
-            return;
-        if (!*label)
-        {
+        if (label == NULL || *label == '\0')
             g_free (label);
-            return;
-        }
-
+        else
             add2panelize (label, g_strdup (pname->buffer));
     }
 }