+20171223
+ + modify ncurses-examples to quiet const-warnings when building with
+ PDCurses.
+ + modify toe to not exit if unable to read a terminal description,
+ e.g., if there is a permission problem.
+ + minor fix for progs/toe.c, using _nc_free_termtype2.
+ + assign 0 to pointer in _nc_tgetent_leak() after freeing it. Also
+ avoid reusing pointer from previous successful call to tgetent
+ if the latest call is unsuccessful (patch by Michael Schroeder,
+ OpenSuSE #1070450).
+ + minor fix for test/tracemunch, initialize $awaiting variable.
+