explicitly name the sprite that couldn't be changed

src/mbgl/annotation/sprite_store.cpp

@@ -15,7 +15,7 @@ void SpriteStore::_setSprite(const std::string& name,
         auto it = sprites.find(name);
         if (it != sprites.end() &&
             (it->second->width != sprite->width || it->second->height != sprite->height)) {
-            Log::Warning(Event::Sprite, "Can't change sprite dimensions");
+            Log::Warning(Event::Sprite, "Can't change sprite dimensions for '%s'", name.c_str());
             return;
         }
 

test/annotations/sprite_store.cpp

@@ -100,7 +100,7 @@ TEST(Annotations, SpriteStoreReplaceWithDifferentDimensions) {
                       EventSeverity::Warning,
                       Event::Sprite,
                       int64_t(-1),
-                      "Can't change sprite dimensions",
+                      "Can't change sprite dimensions for 'sprite'",
                   }));
 
     EXPECT_EQ(sprite1, store.getSprite("sprite"));