NEWS: reword a doubled 'to' to satisfy sanity checks.

* NEWS: Reword a doubled 'to'.

Signed-off-by: Gary V. Vaughan <gary@gnu.org>
specs: remove trailing whitespace.

* specs/optparse_spec.yaml: Remove trailing whitespace.

Signed-off-by: Gary V. Vaughan <gary@gnu.org>
specs: commit new have_size matcher.

* specs/spec_helper.lua.in (matchers.have_size): New matcher
used by std.string.split specs.
* configure.ac (AC_CONFIG_FILES): Remove write permission from
generated spec_helper so I don't edit the wrong file next time.

Signed-off-by: Gary V. Vaughan <gary@gnu.org>