make some stylistic changes

self printing isn't really needed now the script is in scripts/.
This will also fix a gcc warning

scripts/generate_header.sh

@@ -35,7 +35,7 @@ sym_regex='^LUA\(LIB\)\?_API\s\+\([^(]\+\)\s*(\([^)]\+\))\s\+(\([^)]\+\));'
 
 # get funcptr declarations
 ptrize() {
-  grep '^LUA' | grep -v "$IGNORE_SYM" | sed -e "s/$sym_regex/static \2(*\3) (\4);/"
+  grep '^LUA' | grep -v "$IGNORE_SYM" | sed -e "s/$sym_regex/static\t\2(*\3)\t(\4);/"
 }
 
 import_sym() {
@@ -66,9 +66,6 @@ decl_export() {
   uncomment $1 | onelineize | export_sym
 }
 
-print_self() {
-  cat "$0" | sed -e 's#^#// #'
-}
 
 generate_header() {
   local LUA_PATH="$1"
@@ -85,13 +82,14 @@ generate_header() {
   echo "}"
   echo "In linux, to compile this file, you'd do: 'gcc -o xxxxx.so -shared xxxxx.c'. Simple!"
   echo "Due to the way the API is structured, you *should not* link or include lua libraries."
-  echo "This file was automatically generated by the below code. DO NOT MODIFY DIRECTLY."
+  echo "This file was automatically generated. DO NOT MODIFY DIRECTLY."
   echo "**/"
   echo
-  print_self
   echo
   echo "#include <stdarg.h>"
   echo "#include <stdio.h> // for BUFSIZ? this is kinda weird"
+  echo
+  echo
 
   cat "$LUA_PATH/luaconf.h"
   decl "$LUA_PATH/lua.h"
@@ -119,7 +117,6 @@ generate_api_require() {
   echo "This file is automatically generated. DO NOT MODIFY."
   echo "**/"
   echo
-  print_self
   echo
   echo "#include <string.h>"
   echo "#include <stddef.h>"