Fix a typo in rewriteHandler.c

Hi,

I've attached the patch for the following rewriteTargetView comments.

Assert(parsetree->resultRelation == new_rt_index);

/*
* For INSERT/UPDATE we must also update resnos in the targetlist to refer
* to columns of the base relation, since those indicate the target
* columns to be affected.
*
* Note that this destroys the resno ordering of the targetlist, but that
* will be fixed when we recurse through rewriteQuery, which will invoke
* rewriteTargetListIU again on the updated targetlist.
*/
if (parsetree->commandType != CMD_DELETE)
{
foreach(lc, parsetree->targetList)

s/rewriteQuery/RewriteQuery

regards,
Sho Kato