Fix fmt

Author: teoxoy

src/back/hlsl/storage.rs

@@ -402,7 +402,12 @@ impl<W: fmt::Write> super::Writer<'_, W> {
                         stride: width as u32,
                     },
                     crate::TypeInner::Matrix { columns, width, .. } => Parent::Array {
-                        stride: width as u32 * if columns > crate::VectorSize::Bi { 4 } else { 2 },
+                        stride: width as u32
++                            * if columns > crate::VectorSize::Bi {
++                                4
++                            } else {
++                                2
++                            },
                     },
                     _ => unreachable!(),
                 },