Back out change in rev 1.15 of to allow whitespace to separate a
flag from its optional argument if permutation is disabled. The
idea was that since "r:" would match "-r foo" then "r::" should
match "-r foo" too as long as we know that things have not been
reshuffled. Unfortunately, this causes incompatibilities with GNU
getopt_long when the POSIXLY_CORRECT environment variable is set.
OK deraadt@