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/asm-generic/siginfo.h b/libc/kernel/common/asm-generic/siginfo.h
index 6ba48a0..6157ebc 100644
--- a/libc/kernel/common/asm-generic/siginfo.h
+++ b/libc/kernel/common/asm-generic/siginfo.h
@@ -127,77 +127,77 @@
 #define __SI_MESGQ 0
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __SI_CODE(T,N) (N)
-#define SI_USER 0  
-#define SI_KERNEL 0x80  
-#define SI_QUEUE -1  
+#define SI_USER 0
+#define SI_KERNEL 0x80
+#define SI_QUEUE -1
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define SI_TIMER __SI_CODE(__SI_TIMER,-2)  
-#define SI_MESGQ __SI_CODE(__SI_MESGQ,-3)  
-#define SI_ASYNCIO -4  
-#define SI_SIGIO -5  
+#define SI_TIMER __SI_CODE(__SI_TIMER,-2)
+#define SI_MESGQ __SI_CODE(__SI_MESGQ,-3)
+#define SI_ASYNCIO -4
+#define SI_SIGIO -5
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define SI_TKILL -6  
-#define SI_DETHREAD -7  
+#define SI_TKILL -6
+#define SI_DETHREAD -7
 #define SI_FROMUSER(siptr) ((siptr)->si_code <= 0)
 #define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define ILL_ILLOPC (__SI_FAULT|1)  
-#define ILL_ILLOPN (__SI_FAULT|2)  
-#define ILL_ILLADR (__SI_FAULT|3)  
-#define ILL_ILLTRP (__SI_FAULT|4)  
+#define ILL_ILLOPC (__SI_FAULT|1)
+#define ILL_ILLOPN (__SI_FAULT|2)
+#define ILL_ILLADR (__SI_FAULT|3)
+#define ILL_ILLTRP (__SI_FAULT|4)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define ILL_PRVOPC (__SI_FAULT|5)  
-#define ILL_PRVREG (__SI_FAULT|6)  
-#define ILL_COPROC (__SI_FAULT|7)  
-#define ILL_BADSTK (__SI_FAULT|8)  
+#define ILL_PRVOPC (__SI_FAULT|5)
+#define ILL_PRVREG (__SI_FAULT|6)
+#define ILL_COPROC (__SI_FAULT|7)
+#define ILL_BADSTK (__SI_FAULT|8)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define NSIGILL 8
-#define FPE_INTDIV (__SI_FAULT|1)  
-#define FPE_INTOVF (__SI_FAULT|2)  
-#define FPE_FLTDIV (__SI_FAULT|3)  
+#define FPE_INTDIV (__SI_FAULT|1)
+#define FPE_INTOVF (__SI_FAULT|2)
+#define FPE_FLTDIV (__SI_FAULT|3)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define FPE_FLTOVF (__SI_FAULT|4)  
-#define FPE_FLTUND (__SI_FAULT|5)  
-#define FPE_FLTRES (__SI_FAULT|6)  
-#define FPE_FLTINV (__SI_FAULT|7)  
+#define FPE_FLTOVF (__SI_FAULT|4)
+#define FPE_FLTUND (__SI_FAULT|5)
+#define FPE_FLTRES (__SI_FAULT|6)
+#define FPE_FLTINV (__SI_FAULT|7)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define FPE_FLTSUB (__SI_FAULT|8)  
+#define FPE_FLTSUB (__SI_FAULT|8)
 #define NSIGFPE 8
-#define SEGV_MAPERR (__SI_FAULT|1)  
-#define SEGV_ACCERR (__SI_FAULT|2)  
+#define SEGV_MAPERR (__SI_FAULT|1)
+#define SEGV_ACCERR (__SI_FAULT|2)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define NSIGSEGV 2
-#define BUS_ADRALN (__SI_FAULT|1)  
-#define BUS_ADRERR (__SI_FAULT|2)  
-#define BUS_OBJERR (__SI_FAULT|3)  
+#define BUS_ADRALN (__SI_FAULT|1)
+#define BUS_ADRERR (__SI_FAULT|2)
+#define BUS_OBJERR (__SI_FAULT|3)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define NSIGBUS 3
-#define TRAP_BRKPT (__SI_FAULT|1)  
-#define TRAP_TRACE (__SI_FAULT|2)  
+#define TRAP_BRKPT (__SI_FAULT|1)
+#define TRAP_TRACE (__SI_FAULT|2)
 #define NSIGTRAP 2
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define CLD_EXITED (__SI_CHLD|1)  
-#define CLD_KILLED (__SI_CHLD|2)  
-#define CLD_DUMPED (__SI_CHLD|3)  
-#define CLD_TRAPPED (__SI_CHLD|4)  
+#define CLD_EXITED (__SI_CHLD|1)
+#define CLD_KILLED (__SI_CHLD|2)
+#define CLD_DUMPED (__SI_CHLD|3)
+#define CLD_TRAPPED (__SI_CHLD|4)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define CLD_STOPPED (__SI_CHLD|5)  
-#define CLD_CONTINUED (__SI_CHLD|6)  
+#define CLD_STOPPED (__SI_CHLD|5)
+#define CLD_CONTINUED (__SI_CHLD|6)
 #define NSIGCHLD 6
-#define POLL_IN (__SI_POLL|1)  
+#define POLL_IN (__SI_POLL|1)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define POLL_OUT (__SI_POLL|2)  
-#define POLL_MSG (__SI_POLL|3)  
-#define POLL_ERR (__SI_POLL|4)  
-#define POLL_PRI (__SI_POLL|5)  
+#define POLL_OUT (__SI_POLL|2)
+#define POLL_MSG (__SI_POLL|3)
+#define POLL_ERR (__SI_POLL|4)
+#define POLL_PRI (__SI_POLL|5)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define POLL_HUP (__SI_POLL|6)  
+#define POLL_HUP (__SI_POLL|6)
 #define NSIGPOLL 6
-#define SIGEV_SIGNAL 0  
-#define SIGEV_NONE 1  
+#define SIGEV_SIGNAL 0
+#define SIGEV_NONE 1
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define SIGEV_THREAD 2  
-#define SIGEV_THREAD_ID 4  
+#define SIGEV_THREAD 2
+#define SIGEV_THREAD_ID 4
 #ifndef __ARCH_SIGEV_PREAMBLE_SIZE
 #define __ARCH_SIGEV_PREAMBLE_SIZE (sizeof(int) * 2 + sizeof(sigval_t))
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */