keyfork-qrcode: default to rqrr, keyfork default

crates/qrcode/keyfork-qrcode/Cargo.toml

@@ -9,7 +9,7 @@ license = "MIT"
 
 [features]
 default = []
-bin = ["decode-backend-zbar"]
+bin = ["decode-backend-rqrr"]
 decode-backend-rqrr = ["dep:rqrr"]
 decode-backend-zbar = ["dep:keyfork-zbar"]
 

crates/qrcode/keyfork-zbar/src/image.rs

@@ -22,9 +22,9 @@ impl Image {
     ///
     /// A FourCC code can be given in the format:
     ///
-    /// ```no_run
+    /// ```rust,ignore
     /// self.set_format(b"Y800")
-    /// ````
+    /// ```
     pub(crate) fn set_format(&mut self, fourcc: &[u8; 4]) {
         let fourcc: u64 = fourcc[0] as u64
             | ((fourcc[1] as u64) << 8)