Merge pull request #1602 from joscha/patch-1

fix: ensure append is on newline with existing `.gitattributes`

devenv/src/devenv.rs

@@ -181,6 +181,7 @@ impl Devenv {
                 std::fs::OpenOptions::new()
                     .append(true)
                     .open(&target_path)
+                    .and_then(|mut file| file.write("\n"))
                     .and_then(|mut file| file.write_all(path.contents()))
                     .expect("Failed to append to existing file");
             } else {