Declare library for downstream builds

conanfile.py

@@ -50,10 +50,9 @@ class LibOggConan(ConanFile):
         cmake.build()
 
     def package(self):
-        self.copy("COPYING", src=self.subfolder, dst="licenses",
-                  ignore_case=True, keep_path=False)
+        self.copy("COPYING", src=self.subfolder, dst="licenses", ignore_case=True, keep_path=False)
         cmake = self._configure_cmake()
         cmake.install()
 
     def package_info(self):
-        self.cpp_info.libs = ["hello"]
+        self.cpp_info.libs = ["ogg"]