Make sure that io redirections are respected by the '.' builtin. This was not the case earlier, which caused various bugs, especially after eval was made into a function that internally used '.'

darcs-hash:20070425183002-ac50b-d7d93e3b74e7274fe3e0aad98e95dd608bb903ae.gz

exec.c

@@ -1158,7 +1158,7 @@ void exec( job_t *j )
 					
 					signal_unblock();
 					
-					p->status = builtin_run( p->argv );
+					p->status = builtin_run( p->argv, j->io );
 					
 					builtin_out_redirect=old_out;
 					builtin_err_redirect=old_err;