Added a couple of missing close statements

Could cause problems on systems where the number of open fh's per process
was set too low, e.g. 1024

Author: Jan-Olof Hendig

xt/examples-compilation.t

@@ -112,6 +112,8 @@ for @examples -> $eg {
         temp $*ERR = open :w, $*SPEC.devnull;
         try EVAL $code;
         $status = $!;
+        close $*OUT;
+        close $*ERR;
     }
     todo(1) if $eg<todo>;
     if $status {