cargo fmt and clippy across the panorama work, and one lint master carried

The dr-face comparison is master's: a negated partial-order test on the
eye box's width, rewritten as the two conditions it meant.

core/dr-decode/examples/linear_dng.rs

@@ -71,7 +71,7 @@ fn main() {
     // The pixel at (1, 0) was written as (1000, 2000, 3000): if the samples
     // come back interleaved in that order, cpp == 3 means what it says.
     if let rawler::RawImageData::Integer(v) = &image.data {
-        let i = image.cpp * 1;
+        let i = image.cpp;
         println!("      pixel (1,0) = {:?}", &v[i..i + image.cpp.min(3)]);
     }
 
@@ -167,6 +167,7 @@ fn write_linear_dng(w: u32, h: u32) -> Vec<u8> {
     entries.push((50707, 1, 4, [1, 4, 0, 0])); // DNGBackwardVersion
     entries.push(ascii(&mut extra, extra_off, 50708, "DarkRoom Panorama")); // UniqueCameraModel
     entries.push(long(50717, 65535)); // WhiteLevel
+
     // ColorMatrix1: XYZ → camera, 9 SRATIONALs. A plausible sRGB-ish matrix
     // (the inverse of the sRGB D65 primaries), scaled to integers.
     {

core/dr-decode/src/profile.rs

@@ -567,7 +567,11 @@ fn illuminant_code(temperature: f32) -> u16 {
     ];
     TABLE
         .iter()
-        .min_by(|a, b| (a.0 - temperature).abs().total_cmp(&(b.0 - temperature).abs()))
+        .min_by(|a, b| {
+            (a.0 - temperature)
+                .abs()
+                .total_cmp(&(b.0 - temperature).abs())
+        })
         .map(|(_, code)| *code)
         .unwrap_or(255)
 }