* tools/dist/backport.pl:   (): Remove isspace and isprint from POSIX import   (prompt): Replace use of isspace and isprint with pattern matches.  These     functions have been deprecated since Perl 5.20 and may be removed in 5.24.
* tools/dist/backport.pl:
  (): Remove isspace and isprint from POSIX import
  (prompt): Replace use of isspace and isprint with pattern matches.  These
    functions have been deprecated since Perl 5.20 and may be removed in 5.24.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1729935 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion