update code.gitea.io/git in vendor to fix #2245 (#2250)

vendor/code.gitea.io/git/repo_branch.go

@@ -86,10 +86,12 @@ type DeleteBranchOptions struct {
 
 // DeleteBranch delete a branch by name on repository.
 func (repo *Repository) DeleteBranch(name string, opts DeleteBranchOptions) error {
-	cmd := NewCommand("branch", "-d")
+	cmd := NewCommand("branch")
 
 	if opts.Force {
-		cmd.AddArguments("-f")
+		cmd.AddArguments("-D")
+	} else {
+		cmd.AddArguments("-d")
 	}
 
 	cmd.AddArguments(name)

vendor/vendor.json

@@ -3,10 +3,10 @@
 	"ignore": "test appengine",
 	"package": [
 		{
-			"checksumSHA1": "oWPkH7I+FSu9dYZCz8rtuS/R8fo=",
+			"checksumSHA1": "fR5YDSoG7xYv2aLO23rne95gWps=",
 			"path": "code.gitea.io/git",
-			"revision": "fc639668937225e1b9cda203b3491869b439a951",
-			"revisionTime": "2017-07-10T08:37:35Z"
+			"revision": "479f87e5d189e7b8f1fd51dbcd25faa32b632cd2",
+			"revisionTime": "2017-08-03T00:53:29Z"
 		},
 		{
 			"checksumSHA1": "nLhT+bLMj8uLICP+EZbrdoQe6mM=",