Correct Kconfigs according to the coding style

* Original commit: espressif/esp-idf@37126d3451

examples/protocols/mdns/main/Kconfig.projbuild

@@ -1,38 +1,38 @@
 menu "Example Configuration"
 
-config WIFI_SSID
-    string "WiFi SSID"
-    default "myssid"
-    help
-        SSID (network name) for the example to connect to.
+    config WIFI_SSID
+        string "WiFi SSID"
+        default "myssid"
+        help
+            SSID (network name) for the example to connect to.
 
-config WIFI_PASSWORD
-    string "WiFi Password"
-    default "mypassword"
-    help
-        WiFi password (WPA or WPA2) for the example to use.
+    config WIFI_PASSWORD
+        string "WiFi Password"
+        default "mypassword"
+        help
+            WiFi password (WPA or WPA2) for the example to use.
 
-        Can be left blank if the network has no security set.
+            Can be left blank if the network has no security set.
 
-config MDNS_HOSTNAME
-    string "mDNS Hostname"
-    default "esp32-mdns"
-    help
-        mDNS Hostname for example to use
+    config MDNS_HOSTNAME
+        string "mDNS Hostname"
+        default "esp32-mdns"
+        help
+            mDNS Hostname for example to use
 
-config MDNS_INSTANCE
-    string "mDNS Instance Name"
-    default "ESP32 with mDNS"
-    help
-        mDNS Instance Name for example to use
+    config MDNS_INSTANCE
+        string "mDNS Instance Name"
+        default "ESP32 with mDNS"
+        help
+            mDNS Instance Name for example to use
 
-config RESOLVE_TEST_SERVICES
-    bool "Resolve test services"
-    default y
-    help
-        Enable resolving test services on startup.
-        These services are advertized and evaluated in automated tests.
-        When executed locally, these will not be resolved and warnings appear in the log.
-        Please set to false to disable initial querying to avoid warnings.
+    config RESOLVE_TEST_SERVICES
+        bool "Resolve test services"
+        default y
+        help
+            Enable resolving test services on startup.
+            These services are advertized and evaluated in automated tests.
+            When executed locally, these will not be resolved and warnings appear in the log.
+            Please set to false to disable initial querying to avoid warnings.
 
 endmenu