Update utObjImportExport.cpp

Add missing end of line.

test/unit/utObjImportExport.cpp

@@ -366,4 +366,4 @@ TEST_F( utObjImportExport, mtllib_after_g ) {
     aiString name;
     ASSERT_EQ(aiReturn_SUCCESS, mat->Get(AI_MATKEY_NAME, name));
     EXPECT_STREQ("MyMaterial", name.C_Str());
-}
+}