SIFR: fix links.txt reference which conflicts with tango/links.txt

Change-Id: I5047fa774c297c28a38cf70956d19e504a8f431b
Reviewed-on: https://gerrit.libreoffice.org/13256
Reviewed-by: Yousuf Philips <philipz85@hotmail.com>
Tested-by: Yousuf Philips <philipz85@hotmail.com>