message: line commit. Add shortcut keys to text
diff: @@ -416,9 +416,9 @@ void TextEditor::ContextMenu(Scintilla::Point pt) {
  AddToPopUp("Delete", idcmdDelete, writable && !sel.Empty());
  if (mStatusDiff) {
  AddToPopUp("");
  - AddToPopUp("Stage selected", stageSelected, diffLines - staged > 0);
  - AddToPopUp("Unstage selected", unstageSelected, staged > 0);
  - AddToPopUp("Discard selected", discardSelected, diffLines > 0);
  + AddToPopUp("Stage selected\tS", stageSelected, diffLines - staged > 0);
  + AddToPopUp("Unstage selected\tU", unstageSelected, staged > 0);
  + AddToPopUp("Discard selected\tR", discardSelected, diffLines > 0);
  }
  AddToPopUp("");
  AddToPopUp("Select All", idcmdSelectAll);
  