Use Go1.11 module (#5743)

* Migrate to go modules

* make vendor

* Update mvdan.cc/xurls

* make vendor

* Update code.gitea.io/git

* make fmt-check

* Update github.com/go-sql-driver/mysql

* make vendor

vendor/github.com/pelletier/go-buffruneio/.gitignore

@@ -0,0 +1 @@
+*.test

vendor/github.com/pelletier/go-buffruneio/.travis.yml

@@ -0,0 +1,7 @@
+language: go
+sudo: false
+go:
+    - 1.3.3
+    - 1.4.3
+    - 1.5.3
+    - tip

vendor/github.com/pelletier/go-buffruneio/README.md

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+# buffruneio
+
+[![Tests Status](https://travis-ci.org/pelletier/go-buffruneio.svg?branch=master)](https://travis-ci.org/pelletier/go-buffruneio)
+[![GoDoc](https://godoc.org/github.com/pelletier/go-buffruneio?status.svg)](https://godoc.org/github.com/pelletier/go-buffruneio)
+
+Buffruneio is a wrapper around bufio to provide buffered runes access with
+unlimited unreads.
+
+```go
+import "github.com/pelletier/go-buffruneio"
+```
+
+## Examples
+
+```go
+import (
+    "fmt"
+    "github.com/pelletier/go-buffruneio"
+    "strings"
+)
+
+reader := buffruneio.NewReader(strings.NewReader("abcd"))
+fmt.Println(reader.ReadRune()) // 'a'
+fmt.Println(reader.ReadRune()) // 'b'
+fmt.Println(reader.ReadRune()) // 'c'
+reader.UnreadRune()
+reader.UnreadRune()
+fmt.Println(reader.ReadRune()) // 'b'
+fmt.Println(reader.ReadRune()) // 'c'
+```
+
+## Documentation
+
+The documentation and additional examples are available at
+[godoc.org](http://godoc.org/github.com/pelletier/go-buffruneio).
+
+## Contribute
+
+Feel free to report bugs and patches using GitHub's pull requests system on
+[pelletier/go-toml](https://github.com/pelletier/go-buffruneio). Any feedback is
+much appreciated!
+
+## LICENSE
+
+Copyright (c) 2016 Thomas Pelletier
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.