cosmetic: checkpatch cleanup of arch/x86/lib/*.c

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
diff --git a/arch/x86/lib/pcat_interrupts.c b/arch/x86/lib/pcat_interrupts.c
index 2caae20..5dac498 100644
--- a/arch/x86/lib/pcat_interrupts.c
+++ b/arch/x86/lib/pcat_interrupts.c
@@ -76,7 +76,7 @@
 	 * Enable cascaded interrupts by unmasking the cascade IRQ pin of
 	 * the master PIC
 	 */
-	unmask_irq (2);
+	unmask_irq(2);
 
 	enable_interrupts();