fix endianness

Author: newpavlov

rand_core/src/block.rs

@@ -243,12 +243,12 @@ where
         match self.get_results_u32().get(index) {
             Some(&v) => {
                 self.index = index + 1;
-                v
+                v.to_le()
             }
             None => {
                 self.core.generate(&mut self.results);
                 self.index = 1;
-                self.get_results_u32()[0]
+                self.get_results_u32()[0].to_le()
             }
         }
     }
@@ -259,12 +259,12 @@ where
         match self.get_results_u64().get(index) {
             Some(&v) => {
                 self.index = index + 1;
-                v
+                v.to_le()
             }
             None => {
                 self.core.generate(&mut self.results);
                 self.index = 1;
-                self.get_results_u64()[0]
+                self.get_results_u64()[0].to_le()
             }
         }
     }