Update bionic kernel headers using update_all.py

Change-Id: I9c377436e9bf158e7236b3b7dcebf3e79fa961de
diff --git a/libc/kernel/arch-x86/asm/ia32_unistd.h b/libc/kernel/arch-x86/asm/ia32_unistd.h
index 848d228..2cb53d0 100644
--- a/libc/kernel/arch-x86/asm/ia32_unistd.h
+++ b/libc/kernel/arch-x86/asm/ia32_unistd.h
@@ -7,16 +7,23 @@
  ***   structures, and macros generated from the original header, and thus,
  ***   contains no copyrightable information.
  ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
  ****************************************************************************
  ****************************************************************************/
 #ifndef _ASM_X86_64_IA32_UNISTD_H_
 #define _ASM_X86_64_IA32_UNISTD_H_
-
 #define __NR_ia32_restart_syscall 0
 #define __NR_ia32_exit 1
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define __NR_ia32_read 3
 #define __NR_ia32_write 4
 #define __NR_ia32_sigreturn 119
 #define __NR_ia32_rt_sigreturn 173
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif