Fix a reference to a local-jdk target.

Looks like this was missed in 88821141d6812bbde64f0d49087533f87ca6f331

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Change-Id: Ib7709722ae3b07ef7e24bcbbab642204134fa062
Reviewed-on: https://bazel-review.googlesource.com/#/c/2810/
MOS_MIGRATED_REVID=113611789
diff --git a/tools/build_defs/groovy/groovy.bzl b/tools/build_defs/groovy/groovy.bzl
index 43650f5..af3a8e5 100644
--- a/tools/build_defs/groovy/groovy.bzl
+++ b/tools/build_defs/groovy/groovy.bzl
@@ -201,7 +201,7 @@
   classes = [path_to_class(src.path) for src in ctx.files.srcs]
 
   # Write a file that executes JUnit on the inferred classes
-  cmd = "external/local-jdk/bin/java %s -cp %s org.junit.runner.JUnitCore %s\n" % (
+  cmd = "external/local_jdk/bin/java %s -cp %s org.junit.runner.JUnitCore %s\n" % (
     " ".join(ctx.attr.jvm_flags),
     ":".join([dep.short_path for dep in all_deps]),
     " ".join(classes),