clippy: Follow most recommendations

It also tried to replace
        while let Some(arg) = args.next() {
with:
        for arg in args.by_ref() {

but that doesn't work on trait objects.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/main.rs b/src/main.rs
index 4cfbcc7..de2ebb2 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -43,19 +43,19 @@ fn parse_args() -> Result<bool, String> {
     let maybe_args = parser.run(&mut options, &mut std::env::args());
 
     // help is special, check for it even if parser#run returned error.
-    let ref help = options[help_idx];
+    let help = &options[help_idx];
     if help.is_set() {
         parser.print_help(&options);
         return Ok(true);
     }
 
     let args = maybe_args?;
-    let ref version = options[version_idx];
+    let version = &options[version_idx];
     if version.is_set() {
         println!("Version is 0.0.1");
         return Ok(true);
     }
-    let ref verbose = options[verbose_idx];
+    let verbose = &options[verbose_idx];
     println!("verbose: {}", verbose.is_set());
     println!("args: {:?}", args.args);
     Ok(false)