Move print_versions into a util crate.

src/bin_wasm_test.rs

@@ -1,10 +1,12 @@
 #![feature(exact_size_is_empty)]
+#![feature(exit_status_error)]
 use std::io::Read;
 
 use organic::settings::GlobalSettings;
 use wasm::wasm_parse_org;
 
 mod error;
+mod util;
 mod wasm;
 
 #[cfg(feature = "tracing")]