fix hardcoded db name in BZ reporter script

this was hardcoded to bugzilla3, an oversight
to remove that when we recently switched the
dbname to just "bugzilla" on db1001 and away
from db9

Bug 61453

Change-Id: I11537e51846f146e892b093c9932fc109b8dba84
Merge "fix hardcoded db name in BZ reporter script" into production