+20130126
+ + further fixes to mvcur to pass callback function (cf: 20130112),
+ needed to make test/dots_mvcur work.
+ + reduce calls to SetConsoleActiveScreenBuffer in win_driver.c, to
+ help reduce flicker.
+ + modify configure script to omit "+b" from linker options for very
+ old HP-UX systems (report by Dennis Grevenstein)
+ + add HP-UX workaround for missing EILSEQ on old HP-UX systems (patch
+ by Dennis Grevenstein).
+ + restore memmove/strdup support for antique systems (request by
+ Dennis Grevenstein).
+ + change %l behavior in tparm to push the string length onto the stack
+ rather than saving the formatted length into the output buffer
+ (report by Roy Marples, cf: 980620).
+