fix for protocol name

bob/bio/face/config/database/pola_thermal.py

@@ -3,7 +3,7 @@ from bob.bio.face.database import PolaThermalDatabase
 # In case protocol is comming from chain loading
 # https://www.idiap.ch/software/bob/docs/bob/bob.extension/stable/py_api.html#bob.extension.config.load
 if "protocol" not in locals():
-    protocol = "VIS-thermal-overall-split1""
+    protocol = "VIS-thermal-overall-split1"
 
 
 database = PolaThermalDatabase(protocol=protocol)