use go 1.12

Signed-off-by: hongming <talonwan@yunify.com>

vendor/github.com/flynn/go-shlex/Makefile

@@ -0,0 +1,21 @@
+# Copyright 2011 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+include $(GOROOT)/src/Make.inc
+
+TARG=shlex
+GOFILES=\
+	shlex.go\
+
+include $(GOROOT)/src/Make.pkg