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/arch-mips/asm/sn/addrs.h b/libc/kernel/arch-mips/asm/sn/addrs.h
index d243613..543c7d5 100644
--- a/libc/kernel/arch-mips/asm/sn/addrs.h
+++ b/libc/kernel/arch-mips/asm/sn/addrs.h
@@ -68,12 +68,12 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define NODE_SWIN_ADDR(nasid, addr)   (((addr) >= NODE_SWIN_BASE(nasid, 0)) &&   ((addr) < (NODE_SWIN_BASE(nasid, HUB_NUM_WIDGET) + SWIN_SIZE)  ))
 #define UALIAS_BASE HSPEC_BASE
-#define UALIAS_SIZE 0x10000000  
+#define UALIAS_SIZE 0x10000000
 #define UALIAS_LIMIT (UALIAS_BASE + UALIAS_SIZE)
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define HUB_REGISTER_WIDGET 1
 #define IALIAS_BASE NODE_SWIN_BASE(0, HUB_REGISTER_WIDGET)
-#define IALIAS_SIZE 0x800000  
+#define IALIAS_SIZE 0x800000
 #define IS_IALIAS(_a) (((_a) >= IALIAS_BASE) &&   ((_a) < (IALIAS_BASE + IALIAS_SIZE)))
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define NODE_BDOOR_BASE(_n) (NODE_HSPEC_BASE(_n) + (NODE_ADDRSPACE_SIZE/2))
@@ -116,7 +116,7 @@
 #define KLDIR_ADDR(nasid)   TO_NODE_UNCAC((nasid), KLDIR_OFFSET)
 #define KLDIR_SIZE 0x0400
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define KLI_LAUNCH 0  
+#define KLI_LAUNCH 0
 #define KLI_KLCONFIG 1
 #define KLI_NMI 2
 #define KLI_GDA 3