vfmt: fix formatting for `x, _ := f()`

vlib/v/checker/checker.v

@@ -2868,15 +2868,12 @@ pub fn (mut c Checker) postfix_expr(mut node ast.PostfixExpr) table.Type {
 		println(typ_sym.kind.str())
 		c.error('invalid operation: $node.op.str() (non-numeric type `$typ_sym.name`)',
 			node.pos)
-	}
-	//
-	else {
+	} else {
 		node.auto_locked, _ = c.fail_if_immutable(node.expr)
 	}
 	if (typ.is_ptr() || typ_sym.is_pointer()) && !c.inside_unsafe {
 		c.error('pointer arithmetic is only allowed in `unsafe` blocks', node.pos)
 	}
-
 	return typ
 }
 

vlib/v/fmt/fmt.v

@@ -258,12 +258,12 @@ pub fn (mut f Fmt) stmt(node ast.Stmt) {
 						f.write(var_info.share.str() + ' ')
 					}
 					f.expr(left)
-					if i < node.left.len - 1 {
-						f.write(', ')
-					}
 				} else {
 					f.expr(left)
 				}
+				if i < node.left.len - 1 {
+					f.write(', ')
+				}
 			}
 			f.is_assign = true
 			f.write(' $node.op.str() ')