Rename script to script_sig

Author: edilmedeiros

Diff for: 13_structs.md

@@ -16,7 +16,7 @@ use std::io::Read;
 struct Input {
     txid: [u8; 32],
     output_index: u32,
-    script: Vec<u8>,
+    script_sig: Vec<u8>,
     sequence: u32,
 }
 ```
@@ -28,13 +28,13 @@ And all we have to do is create an instance of it in our `main` function:
     for _ in 0..input_length {
         let txid = read_txid(&mut bytes_slice);
         let output_index = read_u32(&mut bytes_slice);
-        let script = read_script(&mut bytes_slice);
+        let script_sig = read_script(&mut bytes_slice);
         let sequence = read_u32(&mut bytes_slice);
 
         let input = Input {
             txid: txid,
             output_index: output_index,
-            script: script,
+            script_sig: script_sig,
             sequence: sequence,
         };
     }
@@ -50,13 +50,13 @@ We can do this anytime the field names match the variable names:
     for _ in 0..input_length {
         let txid = read_txid(&mut bytes_slice);
         let output_index = read_u32(&mut bytes_slice);
-        let script = read_script(&mut bytes_slice);
+        let script_sig = read_script(&mut bytes_slice);
         let sequence = read_u32(&mut bytes_slice);
 
         let input = Input {
             txid,
             output_index,
-            script,
+            script_sig,
             sequence,
         };
     }
@@ -73,13 +73,13 @@ Remember, we have to declare it as *mutable*! We can declare a new vec in two wa
     for _ in 0..input_length {
         let txid = read_txid(&mut bytes_slice);
         let output_index = read_u32(&mut bytes_slice);
-        let script = read_script(&mut bytes_slice);
+        let script_sig = read_script(&mut bytes_slice);
         let sequence = read_u32(&mut bytes_slice);
 
         inputs.push(Input {
             txid,
             output_index,
-            script,
+            script_sig,
             sequence,
         });
     }
@@ -128,7 +128,7 @@ impl fmt::Debug for Input {
         f.debug_struct("Input")
          .field("txid", &self.txid)
          .field("output_index", &self.output_index)
-         .field("script", &self.script)
+         .field("script_sig", &self.script_sig)
          .field("sequence", &self.sequence)
          .finish()
     }
@@ -167,7 +167,7 @@ Let's remove the `impl` block and the `use std::fmt` statement and just add this
 struct Input {
     txid: [u8; 32],
     output_index: u32,
-    script: Vec<u8>,
+    script_sig: Vec<u8>,
     sequence: u32,
 }
 ```