Using this option for any other purpose (don't ask) is very strongly
+ Add the given merge information during the dcommit
+ (e.g. `--mergeinfo="/branches/foo:1-10"`). All svn server versions can
+ store this information (as a property), and svn clients starting from
+ version 1.5 can make use of it. 'git svn' currently does not use it
+ and does not set it automatically.
Create a branch in the SVN repository.