fix Yandex provider exception messages

Author: willdurand

src/Geocoder/Provider/Yandex.php

@@ -59,7 +59,7 @@ public function geocode($address)
     {
         // This API doesn't handle IPs
         if (filter_var($address, FILTER_VALIDATE_IP)) {
-            throw new UnsupportedOperation('The Yandex does not support IP addresses.');
+            throw new UnsupportedOperation('The Yandex provider does not support IP addresses, only street addresses.');
         }
 
         $query = sprintf(self::GEOCODE_ENDPOINT_URL, urlencode($address));

tests/Geocoder/Tests/Provider/YandexTest.php

@@ -18,7 +18,7 @@ public function testGetName()
 
     /**
      * @expectedException \Geocoder\Exception\UnsupportedOperation
-     * @expectedExceptionMessage The Yandex does not support IP addresses.
+     * @expectedExceptionMessage The Yandex provider does not support IP addresses, only street addresses.
      */
     public function testGeocodeWithLocalhostIPv4()
     {
@@ -28,7 +28,7 @@ public function testGeocodeWithLocalhostIPv4()
 
     /**
      * @expectedException \Geocoder\Exception\UnsupportedOperation
-     * @expectedExceptionMessage The Yandex does not support IP addresses.
+     * @expectedExceptionMessage The Yandex provider does not support IP addresses, only street addresses.
      */
     public function testGeocodeWithLocalhostIPv6()
     {