Update git submodules

* Update helpcontent2 from branch 'master'
  to 400078d391b11c921d1069e23e357b12595c0307
  - Fix order of rendering for four Bessel functions in Calc help file ../01/04060115.xhp.
    
    Also removed a couple of unnecessary spaces at the beginning of sentences.
    
    Change-Id: Iecb5cd88887b6eb304114f40c843f094a27976c3
    Reviewed-on: https://gerrit.libreoffice.org/c/help/+/114005
    Tested-by: Jenkins
    Tested-by: Olivier Hallot <olivier.hallot@libreoffice.org>
    Reviewed-by: Olivier Hallot <olivier.hallot@libreoffice.org>
    
diff --git a/helpcontent2 b/helpcontent2
index 26e5265..400078d 160000
--- a/helpcontent2
+++ b/helpcontent2
@@ -1 +1 @@
Subproject commit 26e5265ade24d7eeeaf7d120e0dbcb4cbc598fed
Subproject commit 400078d391b11c921d1069e23e357b12595c0307