Update crates/exex/src/hints.rs

Co-authored-by: Clément Walter <clement0walter@gmail.com>

crates/exex/src/hints.rs

@@ -128,9 +128,9 @@ pub fn block_hint(block: Block) -> Hint {
               ap_tracking: &ApTracking,
               _constants: &HashMap<String, Felt252>|
               -> HintExecutionResult {
-            // We retrieve the `env` pointer from the `ids_data` hashmap.
+            // We retrieve the `model.Block*` pointer from the `ids_data` hashmap.
             // This pointer is used to store the block-related values in the VM.
-            let env_ptr = get_ptr_from_var_name("block", vm, ids_data, ap_tracking)?;
+            let block_ptr = get_ptr_from_var_name("block", vm, ids_data, ap_tracking)?;
 
             // Block header values are stored in a vector.
             let mut block_header = Vec::new();