Remove '+ 1' when counting the length of chains
@@ -169,7 +169,7 @@ pub fn rewrite_chain(expr: &ast::Expr, context: &RewriteContext, shape: Shape) -
let almost_total = rewrites[..rewrites.len() - 1]
.iter()
.fold(0, |a, b| a + first_line_width(b)) + parent_rewrite.len();
- let one_line_len = rewrites.iter().fold(0, |a, r| a + r.len() + 1) + parent_rewrite.len();
+ let one_line_len = rewrites.iter().fold(0, |a, r| a + r.len()) + parent_rewrite.len();
let veto_single_line = if one_line_len > context.config.chain_one_line_max - 1 &&
rewrites.len() > 1 {
