[phobos] [D-Programming-Language/tools] d05d5c: print tango import warning only once

[GitHub via phobos]

  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/tools
  Commit: d05d5c4b7f876d02f555e94aa119abaf3f6b848d
      https://github.com/D-Programming-Language/tools/commit/d05d5c4b7f876d02f555e94aa119abaf3f6b848d
  Author: Martin Nowak <code at dawg.eu>
  Date:   2014-07-31 (Thu, 31 Jul 2014)

  Changed paths:
    M rdmd.d

  Log Message:
  -----------
  print tango import warning only once


  Commit: b5a865ad24f2412ade8e923588dcf745225da607
      https://github.com/D-Programming-Language/tools/commit/b5a865ad24f2412ade8e923588dcf745225da607
  Author: David Nadlinger <code at klickverbot.at>
  Date:   2014-07-31 (Thu, 31 Jul 2014)

  Changed paths:
    M rdmd.d

  Log Message:
  -----------
  Merge pull request #136 from MartinNowak/fixup134

print tango import warning only once


Compare: https://github.com/D-Programming-Language/tools/compare/9ce1216406a5...b5a865ad24f2