All the functions in that list are either now replaced or aren't
replaceable (we just do without), so remove the TODO comment.
#
# Functions.
-# XXX TODO - all from vfprintf to getopt_long have replacements
#
check_function_exists(vfprintf HAVE_VFPRINTF)
check_function_exists(strlcat HAVE_STRLCAT)
#
# Replace missing functions
#
-foreach(FUNC vfprintf strlcat strlcpy strdup strsep getopt_long)
+foreach(FUNC vfprintf strlcat strlcpy strdup strsep getservent getopt_long)
string(TOUPPER ${FUNC} FUNC_UPPERCASE)
set(HAVE_FUNC_UPPERCASE HAVE_${FUNC_UPPERCASE})
if(NOT ${HAVE_FUNC_UPPERCASE})