Fix indentation

Author: Jan-Olof Hendig

doc/Type/atomicint.pod6

@@ -149,11 +149,11 @@ Performs an atomic compare and swap of the native integer value in location
 C<$target>. The first two forms have semantics like:
 
 =for code :preamble<no strict;>
-    my int $seen = $target;
-    if $seen == $expected {
-        $target = $value;
-    }
-    return $seen;
+my int $seen = $target;
+if $seen == $expected {
+    $target = $value;
+}
+return $seen;
 
 Except it is performed as a single hardware-supported atomic instruction, as
 if all memory access to C<$target> were blocked while it took place. Therefore
@@ -184,7 +184,7 @@ succeeds. Therefore, an atomic multiply of an C<atomicint> C<$i> by 2 could
 be implemented as:
 
 =for code :preamble<no strict;>
-    cas $i, -> int $current { $current * 2 }
+cas $i, -> int $current { $current * 2 }
 
 If another thread changed the value while C<$current * 2> was being calculated
 then the block would be called again with the latest value for a further