bump 1.8 branch configs b=417147 r=nthomas

tools/release/configs/fx-moz18-nightly-bootstrap.cfg

@@ -4,7 +4,7 @@ milestone       = nightly
 # not used by nightly
 productTag      = FIREFOX_2_0_0_12pre
 # Branch name and pull dates to use for base tag
-branchTag       = MOZILLA_1_8_BRANCH_test
+branchTag       = MOZILLA_1_8_BRANCH
 # manually tagged from GECKO181_20070712_RELBRANCH
 # RelbranchOverride = GECKO181_20070712_RELBRANCH
 # not used by nightly