[Zorg] Don't pass -jN to LNT, use --threads/--build-threads.

git-svn-id: https://llvm.org/svn/llvm-project/zorg/trunk@282093 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/zorg/buildbot/builders/ClangBuilder.py b/zorg/buildbot/builders/ClangBuilder.py
index 6605868..5d6b0d7 100644
--- a/zorg/buildbot/builders/ClangBuilder.py
+++ b/zorg/buildbot/builders/ClangBuilder.py
@@ -726,11 +726,9 @@
         cc = WithProperties('%(workdir)s/'+compiler_path+'/bin/'+cc)
         cxx = WithProperties('%(workdir)s/'+compiler_path+'/bin/'+cxx)
 
-        # LNT Command line
-        if jobs is None:
-            jobs = 1
+        # LNT Command line (don't pass -jN. Users need to pass both --threads
+        # and --build-threads in nt_flags to get the same effect)
         test_suite_cmd = [python, lnt, 'runtest', 'nt',
-                          '-j'+str(jobs),
                           '--no-timestamp',
                           '--sandbox', sandbox,
                           '--test-suite', test_suite_dir,