more clippy fixes

src/download.rs

@@ -121,7 +121,7 @@ impl<'a> Downloader<'a> {
     }
 
     /// Download and save medias from Reddit in parallel
-    async fn download_collection(&self, collection: &Vec<Post>) -> Result<Summary, GertError> {
+    async fn download_collection(&self, collection: &[Post]) -> Result<Summary, GertError> {
         let summary = Arc::new(Mutex::new(Summary {
             media_supported: 0,
             media_downloaded: 0,

src/subreddit.rs

@@ -1,3 +1,4 @@
+use std::fmt::Write;
 use crate::errors::GertError;
 use crate::structures::Listing;
 use reqwest::Client;
@@ -26,7 +27,7 @@ impl Subreddit {
         let url = &mut format!("{}/{}.json?limit={}", self.url, ty, limit);
 
         if let Some(period) = options {
-            url.push_str(&format!("&t={}", period));
+            let _ = write!(url, "&t={}", period);
         }
 
         Ok(self.client.get(&url.to_owned()).send().await?.json::<Listing>().await?)

src/utils.rs

@@ -40,11 +40,7 @@ pub fn mask_sensitive(word: &str) -> String {
 
 /// Check if the given application is present in the $PATH
 pub fn application_present(name: String) -> bool {
-    let result = which(name);
-    match result {
-        Ok(_) => true,
-        _ => false,
-    }
+    which(name).is_ok()
 }
 
 /// Check if the given URL contains an MP4 track using the content type