* src/misc/formater.cc, src/misc/formater.hh (scan): New method.
(prime): Use it.
* src/bin/ltlcross.cc (translator_runner::translator_runner): Scan each
specification string, and report those missing an input or output
%-sequence.
* NEWS: Mention it.
* src/tgba/tgbakvcomplement.cc
(tgba_kv_complement_succ_iterator::current_state_),
src/ta/taexplicit.hh (state_ta_explicit::source_):
Remove useless private member.
* src/ta/taexplicit.cc: Adjust constructors.
* src/ta/tgta.cc, src/ta/taexplicit.hh: Also fix
copyright banner.
* src/bin/ltlcross.cc (exec_with_timeout): Work
around warning about status not being set in the
error path.
The removes a warning about the return code from write() being
ignored. Reported by Thomas Badie.
* src/bin/ltlcross.cc (string_to_tmp): Call error() on error.
