Use display_comma_separated to print exprs

Author: nickpresta

src/ast/query.rs

@@ -1687,11 +1687,7 @@ impl fmt::Display for OrderByExpr {
                 Some(exprs) => write!(
                     f,
                     " INTERPOLATE ({})",
-                    exprs
-                        .iter()
-                        .map(std::string::ToString::to_string)
-                        .collect::<Vec<_>>()
-                        .join(", ")
+                    display_comma_separated(exprs)
                 )?,
                 None => write!(f, " INTERPOLATE")?,
             }