insert variables in format strings

Author: pgrace-google

src/main.rs

@@ -189,7 +189,7 @@ fn construct_uri_engine(uri_args: UriArgs) -> Result<UnzipEngine, RipunzipErrors
 fn list(engine: UnzipEngine) -> Result<(), RipunzipErrors> {
     let files = engine.list()?;
     for f in files {
-        println!("{}", f);
+        println!("{f}");
     }
     Ok(())
 }

src/unzip/http_range_reader.rs

@@ -75,7 +75,7 @@ impl RangeFetcher {
     /// can be expensive if you only care about a few bytes later in a
     /// resource.)
     pub(crate) fn fetch_range(&self, offset: u64) -> Result<Response, Error> {
-        log::debug!("Fetch range 0x{:x}", offset);
+        log::debug!("Fetch range 0x{offset:x}");
         let mut builder = self.client.get(&self.uri);
         if self.accept_ranges {
             let range_header = format!("bytes={}-{}", offset, self.len());

src/unzip/seekable_http_reader.rs

@@ -364,7 +364,7 @@ impl SeekableHttpReaderEngine {
         //     reinsert reading materials back into the state
         //     release STATE mutex
         //     NOTIFYALL on condvar
-        log::debug!("Read: requested position 0x{:x}.", pos);
+        log::debug!("Read: requested position 0x{pos:x}.");
 
         if pos == self.len {
             return Err(std::io::Error::new(