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/dm-ioctl.h b/libc/kernel/common/linux/dm-ioctl.h
index aa9521f..8d4f28f 100644
--- a/libc/kernel/common/linux/dm-ioctl.h
+++ b/libc/kernel/common/linux/dm-ioctl.h
@@ -19,7 +19,7 @@
 #ifndef _LINUX_DM_IOCTL_V4_H
 #define _LINUX_DM_IOCTL_V4_H
 #include <linux/types.h>
-#define DM_DIR "mapper"  
+#define DM_DIR "mapper"
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define DM_MAX_TYPE_NAME 16
 #define DM_NAME_LEN 128
@@ -123,17 +123,17 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define DM_VERSION_PATCHLEVEL 0
 #define DM_VERSION_EXTRA "-ioctl (2008-04-23)"
-#define DM_READONLY_FLAG (1 << 0)  
-#define DM_SUSPEND_FLAG (1 << 1)  
+#define DM_READONLY_FLAG (1 << 0)
+#define DM_SUSPEND_FLAG (1 << 1)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define DM_PERSISTENT_DEV_FLAG (1 << 3)  
-#define DM_STATUS_TABLE_FLAG (1 << 4)  
-#define DM_ACTIVE_PRESENT_FLAG (1 << 5)  
-#define DM_INACTIVE_PRESENT_FLAG (1 << 6)  
+#define DM_PERSISTENT_DEV_FLAG (1 << 3)
+#define DM_STATUS_TABLE_FLAG (1 << 4)
+#define DM_ACTIVE_PRESENT_FLAG (1 << 5)
+#define DM_INACTIVE_PRESENT_FLAG (1 << 6)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define DM_BUFFER_FULL_FLAG (1 << 8)  
-#define DM_SKIP_BDGET_FLAG (1 << 9)  
-#define DM_SKIP_LOCKFS_FLAG (1 << 10)  
-#define DM_NOFLUSH_FLAG (1 << 11)  
+#define DM_BUFFER_FULL_FLAG (1 << 8)
+#define DM_SKIP_BDGET_FLAG (1 << 9)
+#define DM_SKIP_LOCKFS_FLAG (1 << 10)
+#define DM_NOFLUSH_FLAG (1 << 11)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif