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/mmc/card.h b/libc/kernel/common/linux/mmc/card.h
index a09b71d..c8cd180 100644
--- a/libc/kernel/common/linux/mmc/card.h
+++ b/libc/kernel/common/linux/mmc/card.h
@@ -67,12 +67,12 @@
  unsigned int rca;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned int state;
-#define MMC_STATE_PRESENT (1<<0)  
-#define MMC_STATE_DEAD (1<<1)  
-#define MMC_STATE_BAD (1<<2)  
+#define MMC_STATE_PRESENT (1<<0)
+#define MMC_STATE_DEAD (1<<1)
+#define MMC_STATE_BAD (1<<2)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define MMC_STATE_SDCARD (1<<3)  
-#define MMC_STATE_READONLY (1<<4)  
+#define MMC_STATE_SDCARD (1<<3)
+#define MMC_STATE_READONLY (1<<4)
  u32 raw_cid[4];
  u32 raw_csd[4];
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */