If somebody wants to use shell scripts in a chrooted /var/www, use a shell
builtin instead, to avoid forcing them to copy in ld.so, libc and printf.

--- src/h_bash.c.orig	Sat Dec 31 22:11:19 2011
+++ src/h_bash.c	Sat Dec 31 22:13:56 2011
@@ -138,7 +138,7 @@ bash_echo (buffer_t * buf, char *str, size_t len)
  * we will take the (ancient) POSIX1 standard of 4K, subtract 1K from it and use that
  * as the maxmimum.    The Linux limit appears to be 128K, so 3K will fit. */
 
-  static char echo_start[] = "printf '%s' '";
+  static char echo_start[] = "echo -n '";
   static char echo_quote[] = "'\\''";
   static char echo_end[] = "'\n";
   const size_t maxlen = 3096;