merge app with main

src/output/cli.rs

@@ -1,11 +1,11 @@
 use clap::Arg;
 
-pub fn output_args<'a>() -> Vec<Arg<'a, 'a>> {
-    vec![Arg::with_name("output")
+pub fn output_arg<'a>() -> Arg<'a, 'a> {
+    Arg::with_name("output")
         .long("output")
         .short("o")
         .help("Defines the output format")
         .value_name("STRING")
         .possible_values(&["plain", "json"])
-        .default_value("plain")]
+        .default_value("plain")
 }