end entry paragprah with a period (.)

Author: tshepang

library/core/src/num/uint_macros.rs

@@ -18,7 +18,7 @@ macro_rules! uint_impl {
         pub const MIN: Self = 0;
 
         /// The largest value that can be represented by this integer type
-        #[doc = concat!("(2<sup>", $BITS, "</sup> &minus; 1", $bound_condition, ")")]
+        #[doc = concat!("(2<sup>", $BITS, "</sup> &minus; 1", $bound_condition, ").")]
         ///
         /// # Examples
         ///