replace try_reserve_exact with try_with_capacity in std::fs::read

Author: fluiderson

library/std/src/fs.rs

@@ -285,8 +285,7 @@ pub fn read<P: AsRef<Path>>(path: P) -> io::Result<Vec<u8>> {
     fn inner(path: &Path) -> io::Result<Vec<u8>> {
         let mut file = File::open(path)?;
         let size = file.metadata().map(|m| m.len() as usize).ok();
-        let mut bytes = Vec::new();
-        bytes.try_reserve_exact(size.unwrap_or(0))?;
+        let mut bytes = Vec::try_with_capacity(size.unwrap_or(0))?;
         io::default_read_to_end(&mut file, &mut bytes, size)?;
         Ok(bytes)
     }