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/capability.h b/libc/kernel/common/linux/capability.h
index 7350e7c..68a6e0d 100644
--- a/libc/kernel/common/linux/capability.h
+++ b/libc/kernel/common/linux/capability.h
@@ -23,7 +23,7 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define _LINUX_CAPABILITY_VERSION_1 0x19980330
 #define _LINUX_CAPABILITY_U32S_1 1
-#define _LINUX_CAPABILITY_VERSION_2 0x20071026  
+#define _LINUX_CAPABILITY_VERSION_2 0x20071026
 #define _LINUX_CAPABILITY_U32S_2 2
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define _LINUX_CAPABILITY_VERSION_3 0x20080522
@@ -114,7 +114,7 @@
 #define CAP_WAKE_ALARM 35
 #define CAP_LAST_CAP CAP_WAKE_ALARM
 #define cap_valid(x) ((x) >= 0 && (x) <= CAP_LAST_CAP)
-#define CAP_TO_INDEX(x) ((x) >> 5)  
+#define CAP_TO_INDEX(x) ((x) >> 5)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define CAP_TO_MASK(x) (1 << ((x) & 31))  
+#define CAP_TO_MASK(x) (1 << ((x) & 31))
 #endif