use vars.yml

src/parsing.rs

@@ -33,7 +33,7 @@ impl RawHost {
 				.unwrap_or_else(|err| panic!("{} in file {}", err, hostname))
 		} else if path.is_dir() {
 			let mut buf = path.to_path_buf();
-			buf.push("vars");
+			buf.push("vars.yml");
 			File::open(buf)
 				.unwrap_or_else(|err| panic!("{} in file {}", err, hostname))
 		} else {