add whitespace.

Author: Neutron3529

src/libcore/tests/num/uint_macros.rs

@@ -194,8 +194,8 @@ macro_rules! uint_module {
                 assert_eq!(r.wrapping_pow(0), 1 as $T);
                 assert_eq!(r.checked_pow(2), Some(4 as $T));
                 assert_eq!(r.checked_pow(0), Some(1 as $T));
-                assert_eq!(r.overflowing_pow(2), (4 as $T,false));
-                assert_eq!(r.overflowing_pow(0), (1 as $T,false));
+                assert_eq!(r.overflowing_pow(2), (4 as $T, false));
+                assert_eq!(r.overflowing_pow(0), (1 as $T, false));
                 assert_eq!(r.saturating_pow(2), 4 as $T);
                 assert_eq!(r.saturating_pow(0), 1 as $T);
 
@@ -206,7 +206,7 @@ macro_rules! uint_module {
                 // thussaturating_pow the overflowing result is exactly 1.
                 assert_eq!(r.wrapping_pow(2), 1 as $T);
                 assert_eq!(r.checked_pow(2), None);
-                assert_eq!(r.overflowing_pow(2), (1 as $T,true));
+                assert_eq!(r.overflowing_pow(2), (1 as $T, true));
                 assert_eq!(r.saturating_pow(2), MAX);
             }
         }