Rename binop_sep to binop_separator

src/config.rs

@@ -620,7 +620,7 @@ create_config! {
     multiline_match_arm_forces_block: bool, false,
         "Force multiline match arm bodies to be wrapped in a block";
     merge_derives: bool, true, "Merge multiple `#[derive(...)]` into a single one";
-    binop_sep: SeparatorPlace, SeparatorPlace::Front,
+    binop_separator: SeparatorPlace, SeparatorPlace::Front,
         "Where to put a binary operator when a binary expression goes multiline.";
 }
 

src/expr.rs

@@ -101,7 +101,7 @@ pub fn format_expr(
                 "",
                 context,
                 shape,
-                context.config.binop_sep(),
+                context.config.binop_separator(),
             )
         }
         ast::ExprKind::Unary(ref op, ref subexpr) => rewrite_unary_op(context, op, subexpr, shape),