migrate_to_persist_sqlite.py: Fix db dump tool name

Closes eclipse-mosquitto#3473. Thanks to Stuart Henderson

Author: ralight

plugins/persist-sqlite/migrate_to_persist_sqlite.py

@@ -295,22 +295,22 @@ def migrate_to_persist_sqlite(
 # Migration
 
 
-def find_mosquitto_dump_tool() -> str:
-    mosquitto_dump_tool = shutil.which("mosquitto_dump_tool")
-    if mosquitto_dump_tool is None:
+def find_mosquitto_db_dump() -> str:
+    mosquitto_db_dump = shutil.which("mosquitto_db_dump")
+    if mosquitto_db_dump is None:
         raise RuntimeError(
-            'Could not find mosquitto_dump_tool. Provide the path via the "--dump-tool" argument '
+            'Could not find mosquitto_db_dump. Provide the path via the "--dump-tool" argument '
             "or make sure the executable is contained in your system's path."
         )
-    return mosquitto_dump_tool
+    return mosquitto_db_dump
 
 
 def dump_mosquitto_db_to_json(
-    mosquitto_dump_tool: str, persistence_db_path: Path
+    mosquitto_db_dump: str, persistence_db_path: Path
 ) -> str:
     return subprocess.check_output(
         [
-            mosquitto_dump_tool,
+            mosquitto_db_dump,
             "--json",
             str(persistence_db_path),
         ]
@@ -351,8 +351,8 @@ def main():
 
     args = parser.parse_args()
     persistence_db_path = Path(args.persistence_db)
-    mosquitto_dump_tool = (
-        args.dump_tool if args.dump_tool else find_mosquitto_dump_tool()
+    mosquitto_db_dump = (
+        args.dump_tool if args.dump_tool else find_mosquitto_db_dump()
     )
 
     if args.conf is not None:
@@ -377,7 +377,7 @@ def main():
 
     # Dump Snapshot persistence and parse JSON
     snapshot_persistence = SnapshotPersistence(
-        dump_mosquitto_db_to_json(mosquitto_dump_tool, persistence_db_path)
+        dump_mosquitto_db_to_json(mosquitto_db_dump, persistence_db_path)
     )
 
     # Migrate Snapshot persistence and write SQLite3 file