cargo clippy

src/build/arg/mod.rs

@@ -98,22 +98,22 @@ impl<'help> Arg<'help> {
 
     /// Get the help specified for this argument, if any
     pub fn get_help(&self) -> Option<&str> {
-        self.help.clone()
+        self.help
     }
 
     /// Get the help heading specified for this argument, if any
     pub fn get_help_heading(&self) -> Option<&str> {
-        self.help.clone()
+        self.help
     }
 
     /// Get the short option name for this argument, if any
     pub fn get_short(&self) -> Option<char> {
-        self.short.clone()
+        self.short
     }
 
     /// Get the long option name for this argument, if any
     pub fn get_long(&self) -> Option<&str> {
-        self.long.clone()
+        self.long
     }
 
     /// Get the list of the possible values for this argument, if any