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/sound/tlv.h b/libc/kernel/common/sound/tlv.h
index 9e8d5b9..33c96d6 100644
--- a/libc/kernel/common/sound/tlv.h
+++ b/libc/kernel/common/sound/tlv.h
@@ -18,13 +18,13 @@
  ****************************************************************************/
 #ifndef __SOUND_TLV_H
 #define __SOUND_TLV_H
-#define SNDRV_CTL_TLVT_CONTAINER 0  
-#define SNDRV_CTL_TLVT_DB_SCALE 1  
+#define SNDRV_CTL_TLVT_CONTAINER 0
+#define SNDRV_CTL_TLVT_DB_SCALE 1
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define SNDRV_CTL_TLVT_DB_LINEAR 2  
-#define SNDRV_CTL_TLVT_DB_RANGE 3  
-#define SNDRV_CTL_TLVT_DB_MINMAX 4  
-#define SNDRV_CTL_TLVT_DB_MINMAX_MUTE 5  
+#define SNDRV_CTL_TLVT_DB_LINEAR 2
+#define SNDRV_CTL_TLVT_DB_RANGE 3
+#define SNDRV_CTL_TLVT_DB_MINMAX 4
+#define SNDRV_CTL_TLVT_DB_MINMAX_MUTE 5
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define TLV_DB_SCALE_MASK 0xffff
 #define TLV_DB_SCALE_MUTE 0x10000
@@ -42,4 +42,3 @@
 #define TLV_DB_GAIN_MUTE -9999999
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif
-