[tigervnc] (4 commits) ...Use calloc instead of xmalloc.

[Tim Waugh]

Summary of changes:

  10230b2... Reference the 1.4.2 tarball. (*)
  8e16746... Removed unnecessary configure flags. (*)
  86c83bb... Merge branch 'f21' into f22 (*)
  ecb7661... Use calloc instead of xmalloc. (*)

(*) This commit already existed in another branch; no separate mail sent