fix ldap sslopts

rel/files/emqttd.config.development

@@ -59,8 +59,8 @@
             %    {user_dn, "uid=$u,ou=People,dc=example,dc=com"},
             %    {ssl, fasle},
             %    {sslopts, [
-            %        {"certfile", "ssl.crt"},
-            %        {"keyfile", "ssl.key"}]}
+            %        {certfile, "ssl.crt"},
+            %        {keyfile, "ssl.key"}]}
             % ]},
 
             %% Allow all

rel/files/emqttd.config.production

@@ -51,8 +51,8 @@
             %    {user_dn, "uid=$u,ou=People,dc=example,dc=com"},
             %    {ssl, fasle},
             %    {sslopts, [
-            %        {"certfile", "ssl.crt"},
-            %        {"keyfile", "ssl.key"}]}
+            %        {certfile, "ssl.crt"},
+            %        {keyfile, "ssl.key"}]}
             % ]},
 
             %% Allow all