search unittests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79884 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/llvmgrep b/utils/llvmgrep
index 566ed82..540f059 100755
--- a/utils/llvmgrep
+++ b/utils/llvmgrep
@@ -33,7 +33,7 @@
     *) grep_cmd="egrep -l -n" ;;
   esac
   ./utils/llvmdo -topdir "$TOPDIR" \
-    -dirs "include lib tools utils docs examples test projects cmake" $grep_cmd "$*"
+    -dirs "include lib tools utils docs examples test unittests projects cmake" $grep_cmd "$*"
 else
   echo "Can't find LLVM top directory"
 fi