Clean up trailing whitespace in the kernel headers.

And fix the scripts so they stop letting trailing whitespace through.

Change-Id: Ie109fbe1f63321e565ba0fa60fee8e9cf3a61cfc
diff --git a/libc/kernel/common/linux/irq.h b/libc/kernel/common/linux/irq.h
index f56a628..86d726e 100644
--- a/libc/kernel/common/linux/irq.h
+++ b/libc/kernel/common/linux/irq.h
@@ -28,35 +28,35 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #include <asm/irq.h>
 #include <asm/ptrace.h>
-#define IRQ_TYPE_NONE 0x00000000  
-#define IRQ_TYPE_EDGE_RISING 0x00000001  
+#define IRQ_TYPE_NONE 0x00000000
+#define IRQ_TYPE_EDGE_RISING 0x00000001
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define IRQ_TYPE_EDGE_FALLING 0x00000002  
+#define IRQ_TYPE_EDGE_FALLING 0x00000002
 #define IRQ_TYPE_EDGE_BOTH (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING)
-#define IRQ_TYPE_LEVEL_HIGH 0x00000004  
-#define IRQ_TYPE_LEVEL_LOW 0x00000008  
+#define IRQ_TYPE_LEVEL_HIGH 0x00000004
+#define IRQ_TYPE_LEVEL_LOW 0x00000008
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define IRQ_TYPE_SENSE_MASK 0x0000000f  
-#define IRQ_TYPE_PROBE 0x00000010  
-#define IRQ_INPROGRESS 0x00010000  
-#define IRQ_DISABLED 0x00020000  
+#define IRQ_TYPE_SENSE_MASK 0x0000000f
+#define IRQ_TYPE_PROBE 0x00000010
+#define IRQ_INPROGRESS 0x00010000
+#define IRQ_DISABLED 0x00020000
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define IRQ_PENDING 0x00040000  
-#define IRQ_REPLAY 0x00080000  
-#define IRQ_AUTODETECT 0x00100000  
-#define IRQ_WAITING 0x00200000  
+#define IRQ_PENDING 0x00040000
+#define IRQ_REPLAY 0x00080000
+#define IRQ_AUTODETECT 0x00100000
+#define IRQ_WAITING 0x00200000
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define IRQ_LEVEL 0x00400000  
-#define IRQ_MASKED 0x00800000  
-#define IRQ_PER_CPU 0x01000000  
+#define IRQ_LEVEL 0x00400000
+#define IRQ_MASKED 0x00800000
+#define IRQ_PER_CPU 0x01000000
 #define CHECK_IRQ_PER_CPU(var) 0
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define IRQ_NOPROBE 0x02000000  
-#define IRQ_NOREQUEST 0x04000000  
-#define IRQ_NOAUTOEN 0x08000000  
-#define IRQ_DELAYED_DISABLE 0x10000000  
+#define IRQ_NOPROBE 0x02000000
+#define IRQ_NOREQUEST 0x04000000
+#define IRQ_NOAUTOEN 0x08000000
+#define IRQ_DELAYED_DISABLE 0x10000000
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define IRQ_WAKEUP 0x20000000  
+#define IRQ_WAKEUP 0x20000000
 struct proc_dir_entry;
 struct irq_chip {
  const char *name;