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

llvm-svn: 141294
diff --git a/llvm/test/TableGen/MultiClass.td b/llvm/test/TableGen/MultiClass.td
index 9f92b73..04f3a56 100644
--- a/llvm/test/TableGen/MultiClass.td
+++ b/llvm/test/TableGen/MultiClass.td
@@ -1,4 +1,4 @@
-// RUN: tblgen %s | grep {zing = 4} | count 2
+// RUN: llvm-tblgen %s | grep {zing = 4} | count 2
 // XFAIL: vg_leak
 
 class C1<int A, string B> {