simple/cosmetic changes only

Author: cehteh

src/lib.rs

@@ -493,7 +493,8 @@ impl<H, T> HeaderVec<H, T> {
     pub unsafe fn set_len(&mut self, new_len: usize) {
         debug_assert!(
             new_len <= self.capacity(),
-            "new_len is greater than capacity"
+            "new_len [{new_len}] is greater than capacity [{}]",
+            self.capacity()
         );
         self.header_mut().len = new_len.into();
     }
@@ -592,7 +593,7 @@ impl<H, T> HeaderVec<H, T> {
     const fn offset() -> usize {
         // The first location, in units of size_of::<T>(), that is after the header
         // It's the end of the header, rounded up to the nearest size_of::<T>()
-        (mem::size_of::<AlignedHeader<H, T>>()-1) / mem::size_of::<T>() + 1
+        (mem::size_of::<AlignedHeader<H, T>>() - 1) / mem::size_of::<T>() + 1
     }
 
     /// Compute the number of elements (in units of T) to allocate for a given capacity.