Fix msearch rest-api-spec

Author: pquentin

rest-api-spec/src/main/resources/rest-api-spec/api/msearch.json

@@ -69,6 +69,38 @@
         "type":"boolean",
         "description":"Indicates whether network round-trips should be minimized as part of cross-cluster search requests execution",
         "default":"true"
+      },
+      "index":{
+        "type":"list",
+        "description":"A comma-separated list of index names to use as default"
+      },
+      "ignore_unavailable":{
+        "type":"boolean",
+        "description":"Whether specified concrete indices should be ignored when unavailable (missing or closed)"
+      },
+      "ignore_throttled":{
+        "type":"boolean",
+        "description":"Whether specified concrete, expanded or aliased indices should be ignored when throttled",
+        "deprecated":true
+      },
+      "allow_no_indices":{
+        "type":"boolean",
+        "description":"Whether to ignore if a wildcard indices expression resolves into no concrete indices. (This includes `_all` string or when no indices have been specified)"
+      },
+      "expand_wildcards":{
+        "type":"enum",
+        "options": ["open", "closed", "hidden", "none", "all"],
+        "default":"open",
+        "description":"Whether to expand wildcard expression to concrete indices that are open, closed or both."
+      },
+      "routing":{
+        "type":"list",
+        "description":"A comma-separated list of specific routing values"
+      },
+      "include_named_queries_score":{
+        "type":"boolean",
+        "description":"Indicates whether hit.matched_queries should be rendered as a map that includes the name of the matched query associated with its score (true) or as an array containing the name of the matched queries (false)",
+        "default": false
       }
     },
     "body":{