[bugfix] Site.file_extension is a property not a method

Change-Id: Icbb6cc971ebde786d42827abbcc541aab1a6dec0
---
M pywikibot/specialbots/_upload.py
M scripts/checkimages.py
2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/pywikibot/specialbots/_upload.py b/pywikibot/specialbots/_upload.py
index 045ac27..3fd8a76 100644
--- a/pywikibot/specialbots/_upload.py
+++ b/pywikibot/specialbots/_upload.py
@@ -240,7 +240,7 @@
         # FIXME: these 2 belong somewhere else, presumably in family
         # forbidden characters are handled by pywikibot/page.py
         forbidden = ':*/\\'  # to be extended
-        allowed_formats = self.target_site.file_extensions()
+        allowed_formats = self.target_site.file_extensions
 
         # ask until it's valid
         first_check = True
diff --git a/scripts/checkimages.py b/scripts/checkimages.py
index 06fafe9..05b4b29 100755
--- a/scripts/checkimages.py
+++ b/scripts/checkimages.py
@@ -1429,7 +1429,7 @@
 
         # Don't put "}}" here, please. Useless and can give problems.
         something = ['{{']
-        allowed_formats = self.site.file_extensions()  # Allowed extensions
+        allowed_formats = self.site.file_extensions  # Allowed extensions
         brackets = False
         delete = False
         notification = None

