Add missing gh pr merge flag completions

command-signatures/json/gh.json

@@ -1865,6 +1865,56 @@
                         }
                     },
                     "options": [
+                        {
+                            "name": "--admin",
+                            "description": "Use administrator privileges to merge a pull request that does not meet requirements"
+                        },
+                        {
+                            "name": [
+                                "-A",
+                                "--author-email"
+                            ],
+                            "description": "Email text for merge commit author",
+                            "args": {
+                                "name": "text"
+                            }
+                        },
+                        {
+                            "name": "--auto",
+                            "description": "Automatically merge only after necessary requirements are met"
+                        },
+                        {
+                            "name": [
+                                "-b",
+                                "--body"
+                            ],
+                            "description": "Body text for the merge commit",
+                            "args": {
+                                "name": "text"
+                            }
+                        },
+                        {
+                            "name": [
+                                "-F",
+                                "--body-file"
+                            ],
+                            "description": "Read body text from file (use \"-\" to read from standard input)",
+                            "args": {
+                                "name": "file",
+                                "template": "filepaths"
+                            }
+                        },
+                        {
+                            "name": "--disable-auto",
+                            "description": "Disable auto-merge for this pull request"
+                        },
+                        {
+                            "name": "--match-head-commit",
+                            "description": "Commit SHA that the pull request head must match to allow merge",
+                            "args": {
+                                "name": "SHA"
+                            }
+                        },
                         {
                             "name": [
                                 "-d",
@@ -1892,6 +1942,16 @@
                                 "--squash"
                             ],
                             "description": "Squash the commits into one commit and merge it into the base branch"
+                        },
+                        {
+                            "name": [
+                                "-t",
+                                "--subject"
+                            ],
+                            "description": "Subject text for the merge commit",
+                            "args": {
+                                "name": "text"
+                            }
                         }
                     ]
                 },