Fix clippy lints

Author: DougLau

gift-bin/src/main.rs

@@ -1,6 +1,6 @@
 // main.rs      gift command
 //
-// Copyright (c) 2019-2025  Douglas Lau
+// Copyright (c) 2019-2026  Douglas Lau
 //
 #![forbid(unsafe_code)]
 
@@ -127,14 +127,14 @@ fn show_file(
     writeln!(out, "{:?}", path)?;
     out.set_color(&bold)?;
     write!(out, "GIF{}, frames: {}", gif, frames.len())?;
-    if let Some(ap) = preamble.loop_count_ext {
-        if let Some(c) = ap.loop_count() {
-            write!(out, ", repeat: ")?;
-            if c == 0 {
-                write!(out, "∞")?;
-            } else {
-                write!(out, "{}", c)?;
-            }
+    if let Some(ap) = preamble.loop_count_ext
+        && let Some(c) = ap.loop_count()
+    {
+        write!(out, ", repeat: ")?;
+        if c == 0 {
+            write!(out, "∞")?;
+        } else {
+            write!(out, "{}", c)?;
         }
     }
     if !comments.is_empty() {

gift/src/decode.rs

@@ -1,6 +1,6 @@
 // decode.rs
 //
-// Copyright (c) 2019-2025  Douglas Lau
+// Copyright (c) 2019-2026  Douglas Lau
 //
 //! GIF file decoding
 use crate::block::*;
@@ -225,10 +225,10 @@ impl<R: Read> Blocks<R> {
             .with_height(height)
             .with_flags(flags);
         self.image_sz = b.image_sz();
-        if let Some(sz) = self.max_image_sz {
-            if self.image_sz > sz {
-                return Err(Error::TooLargeImage);
-            }
+        if let Some(sz) = self.max_image_sz
+            && self.image_sz > sz
+        {
+            return Err(Error::TooLargeImage);
         }
         Ok(b.into())
     }
@@ -630,10 +630,10 @@ impl<R: Read> Iterator for StepsOnce<R> {
     type Item = Result<Step>;
 
     fn next(&mut self) -> Option<Self::Item> {
-        if self.raster.is_none() {
-            if let Err(e) = self.make_raster() {
-                return Some(Err(e));
-            }
+        if self.raster.is_none()
+            && let Err(e) = self.make_raster()
+        {
+            return Some(Err(e));
         }
         match self.raster {
             Some(_) => self.next_step(),