"Center" is the default of longtable, but some situations require it
to be centered explicitly, such as when using floatrow:
https://tex.stackexchange.com/questions/320592/floatrow-package-conflicting-with-centering-longtable
(cherry picked from commit
bde1834f7e81727545e014c24e27e148f6ba7d65)
os << "[l]";
break;
case LYX_LONGTABULAR_ALIGN_CENTER:
+ os << "[c]";
break;
case LYX_LONGTABULAR_ALIGN_RIGHT:
os << "[r]";
- Needauth is not needed for exporting R code (only when executing the code).
+- Center longtable explicitly for compatibility with some packages (bug 10690).
+
* TEX2LYX IMPROVEMENTS