Fix t9200 on case insensitive file systems

t9200 defines $CVSROOT where cvs should init its repository $CVSROOT is set to $PWD/cvsroot. cvs init is supposed to create the repository inside $PWD/cvsroot/CVSROOT "cvs init" (e.g. version 1.11.23) checks if the last element of the path is "CVSROOT", and if a directory with e.g. $PWD/cvsroot/CVSROOT already exists. For such a $CVSROOT cvs refuses to init a repository here: "Cannot initialize repository under existing CVSROOT: On a case insenstive file system cvsroot and CVSROOT are the same directories and t9200 fails. Solution: use $PWD/tmpcvsroot instead of cvsroot $PWD/cvsroot Signed-off-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Jeff King <peff@peff.net>