slave

The stored-routine code took the contents of the (lowest) parser
and copied it directly to the binlog, which causes problems if there
is a special case of interpretation at the parser level -- which 
there is, in the "/*!VER */" comments.  The trailing "*/" caused
errors on the slave, naturally.

Now, since by that point we have /properly/ created parse-tree (as 
the rest of the server should do!) for the stored-routine CREATE, we
can construct a perfect statement from that information, instead of
writing uncertain information from an unknown parser state.  
Fortunately, there's already a function nearby that does exactly 
that.
---
Update for Bug#36570.  Qualify routine names with db name when
writing to the binlog ONLY if the source text is qualified.