migrate src-d/go-git -> go-git/go-git (#128)

Merge branch 'master' into vendor-migrate-go-git

Merge branch 'master' into vendor-migrate-go-git

migrate src-d/go-git -> go-git/go-git

Co-authored-by: 6543 <6543@obermui.de>
Reviewed-on: https://gitea.com/gitea/tea/pulls/128
Reviewed-by: techknowlogick <techknowlogick@gitea.io>
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>

vendor/github.com/go-git/go-git/v5/worktree_linux.go

@@ -0,0 +1,26 @@
+// +build linux
+
+package git
+
+import (
+	"syscall"
+	"time"
+
+	"github.com/go-git/go-git/v5/plumbing/format/index"
+)
+
+func init() {
+	fillSystemInfo = func(e *index.Entry, sys interface{}) {
+		if os, ok := sys.(*syscall.Stat_t); ok {
+			e.CreatedAt = time.Unix(int64(os.Ctim.Sec), int64(os.Ctim.Nsec))
+			e.Dev = uint32(os.Dev)
+			e.Inode = uint32(os.Ino)
+			e.GID = os.Gid
+			e.UID = os.Uid
+		}
+	}
+}
+
+func isSymlinkWindowsNonAdmin(err error) bool {
+	return false
+}