ncurses 5.9 - patch 20130209

+ modify test/configure script to make it simpler to override names
  of curses-related libraries, to help with linking with pdcurses in
  mingw environment.
+ if the --with-terminfo-dirs configure option is not used, there is
  no corresponding compiled-in value for that.  Fill in "no default
  value" for that part of the manpage substitution.