Update git submodules

* Update helpcontent2 from branch 'master'
  - superfluous character
    
    Change-Id: I2c7641a6c7431a3b82b449364519f4f34bf8a8c9
    Reviewed-on: https://gerrit.libreoffice.org/65446
    Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
    

helpcontent2 @ 197b505a

-Subproject commit 59404eb5ca76c1e9b0dc5a6fb9730bc9328b0cbf
+Subproject commit 197b505a88cebf4a198be468d75edb3ce30ca42b