s/tblgen/llvm-tblgen/g in a few missed places, including the tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141294 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/TableGen/MultiClassInherit.td b/test/TableGen/MultiClassInherit.td
index 9da80ba..8b78bc7 100644
--- a/test/TableGen/MultiClassInherit.td
+++ b/test/TableGen/MultiClassInherit.td
@@ -1,4 +1,4 @@
-// RUN: tblgen %s | grep {zing = 4} | count 28
+// RUN: llvm-tblgen %s | grep {zing = 4} | count 28
 // XFAIL: vg_leak
 
 class C1<int A, string B> {