Log Message:
Updated dialog to 1.3.20160424.

2016/04/24
	+ fix a special case in drawing shadow on a line-drawing cell where the
	  alternate-character set flag was lost (report by Martin Kravec).
	+ fix a regression from 2015/05/13 changes for escaping; it is
	  necessary to retain backslashes within quotes to make "\Z" escapes
	  work (report by Marcin Krol).
	+ fix test package for RPMs; changes in 2015 omitted symbolic links
	  for the library.
	+ fix typo in help message for "--buildlist" (report by Rihards Olups).
	+ modified autoconf macros
	  + CF_PROG_AR, CF_AR_FLAGS added to improve check for archive tool.
	  + CF_LD_RPATH_OPT, change FreeBSD to use -Wl,-rpath rather than
	    -rpath option.  According to FreeBSD #178732, either works since
	    FreeBSD 4.x; however scons does not accept anything except the
	    -Wl,-rpath form.
	  + CF_WITH_NCURSES_ETC, change from ncurses to check for pthreads
	    dependency.