[subtitleeditor/f17] (4 commits) ...fix a typo.

[Martin Sourada]

Summary of changes:

  57e7386... Update to 0.40.0Update to 0.40.0. (*)
  7e25034... try to fix build with newer glibc. (*)
  3668aeb... another attempt to fix build (*)
  0c45c7e... fix a typo. (*)

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