[1596] Update spec files for everybody

Or, everybody who accepts a shutdown command with pid now. Stats needed
to be updated because it did call functions based on the name and spec
file somehow.

src/bin/ddns/ddns.spec

@@ -34,7 +34,13 @@
       {
         "command_name": "shutdown",
         "command_description": "Shut down DDNS",
-        "command_args": []
+        "command_args": [
+          {
+            "item_name": "pid",
+            "item_type": "integer",
+            "item_optional": true
+          }
+        ]
       }
     ]
   }

src/bin/stats/stats-httpd.spec

@@ -47,7 +47,13 @@
       {
         "command_name": "shutdown",
         "command_description": "Shut down the stats httpd",
-        "command_args": []
+        "command_args": [
+          {
+            "item_name": "pid",
+            "item_type": "integer",
+            "item_optional": true
+          }
+        ]
       }
     ]
   }

src/bin/stats/stats.py.in

@@ -304,9 +304,11 @@ class Stats:
         return isc.config.create_answer(
             0, "Stats is up. (PID " + str(os.getpid()) + ")")
 
-    def command_shutdown(self):
+    def command_shutdown(self, pid=None):
         """
         handle shutdown command
+
+        The pid argument is ignored, it is here to match the signature.
         """
         logger.info(STATS_RECEIVED_SHUTDOWN_COMMAND)
         self.running = False

src/bin/stats/stats.spec

@@ -12,7 +12,13 @@
       {
         "command_name": "shutdown",
         "command_description": "Shut down the stats module",
-        "command_args": []
+        "command_args": [
+          {
+            "item_name": "pid",
+            "item_type": "integer",
+            "item_optional": true
+          }
+        ]
       },
       {
         "command_name": "show",

src/bin/xfrin/xfrin.spec

@@ -86,7 +86,13 @@
       {
         "command_name": "shutdown",
         "command_description": "Shut down xfrin module",
-        "command_args": []
+        "command_args": [
+          {
+            "item_name": "pid",
+            "item_type": "integer",
+            "item_optional": true
+          }
+        ]
       }
     ]
   }

src/bin/xfrout/xfrout.spec.pre.in

@@ -106,7 +106,13 @@
         {
           "command_name": "shutdown",
           "command_description": "Shut down Xfrout",
-          "command_args": []
+          "command_args": [
+          {
+            "item_name": "pid",
+            "item_type": "integer",
+            "item_optional": true
+          }
+        ]
         }
       ]
   }

src/bin/zonemgr/zonemgr.spec.pre.in

@@ -63,7 +63,13 @@
         {
           "command_name": "shutdown",
           "command_description": "Shut down Zonemgr",
-          "command_args": []
+          "command_args": [
+          {
+            "item_name": "pid",
+            "item_type": "integer",
+            "item_optional": true
+          }
+        ]
         }
       ]
   }