ncurses 5.7 - patch 20100724

ncurses 5.7 - patch 20100724

+ add a check in tic for missing set_tab if clear_all_tabs given.
+ improve use of symbolic links in makefiles by using "-f" option if
  it is supported, to eliminate temporary removal of the target
  (prompted by http://www.t2-project.org/packages/ncurses.html)
+ minor improvement to test/ncurses.c, reset color pairs in 'd' test
  after exit from 'm' main-menu command.
+ improved ncu-indent, from mawk changes, allows more than one of
  GCC_NORETURN, GCC_PRINTFLIKE and GCC_SCANFLIKE on a single line.
+ add hard-reset for rs2 to wsvt25 to help ensure that reset ends