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/limits.h b/libc/kernel/common/linux/limits.h
index 1b17700..c63b2a2 100644
--- a/libc/kernel/common/linux/limits.h
+++ b/libc/kernel/common/linux/limits.h
@@ -19,22 +19,22 @@
 #ifndef _LINUX_LIMITS_H
 #define _LINUX_LIMITS_H
 #define NR_OPEN 1024
-#define NGROUPS_MAX 65536  
+#define NGROUPS_MAX 65536
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define ARG_MAX 131072  
-#define CHILD_MAX 999  
-#define OPEN_MAX 256  
-#define LINK_MAX 127  
+#define ARG_MAX 131072
+#define CHILD_MAX 999
+#define OPEN_MAX 256
+#define LINK_MAX 127
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define MAX_CANON 255  
-#define MAX_INPUT 255  
-#define NAME_MAX 255  
-#define PATH_MAX 4096  
+#define MAX_CANON 255
+#define MAX_INPUT 255
+#define NAME_MAX 255
+#define PATH_MAX 4096
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define PIPE_BUF 4096  
-#define XATTR_NAME_MAX 255  
-#define XATTR_SIZE_MAX 65536  
-#define XATTR_LIST_MAX 65536  
+#define PIPE_BUF 4096
+#define XATTR_NAME_MAX 255
+#define XATTR_SIZE_MAX 65536
+#define XATTR_LIST_MAX 65536
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define RTSIG_MAX 32
 #endif