drd: Avoid that Coverity complains about a dead assignment

Thanks to Florian for reporting this.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13270 a5019735-40e9-0310-863c-91ae7b9d1cf9
drd: Make --trace-addr trace all loads for the specified address

Thanks to Florian for reporting this.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13271 a5019735-40e9-0310-863c-91ae7b9d1cf9