Convert tests using "| wc -l | grep ..." to use the count script.

llvm-svn: 41097
diff --git a/llvm/test/Transforms/InstCombine/bswap-fold.ll b/llvm/test/Transforms/InstCombine/bswap-fold.ll
index 1552386..8dad43f 100644
--- a/llvm/test/Transforms/InstCombine/bswap-fold.ll
+++ b/llvm/test/Transforms/InstCombine/bswap-fold.ll
@@ -1,5 +1,5 @@
 ; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine | llvm-dis | \
-; RUN:   grep ret | wc -l | grep 3
+; RUN:   grep ret | count 3
 ; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine | llvm-dis | \
 ; RUN:   not grep call.*bswap