Fix a constant reference

Author: k0kubun

cgi-bin/webhook.cgi

@@ -187,7 +187,7 @@ class PushHook
   def execute(*cmd, user:)
     cmd = ['/usr/bin/sudo', '-u', user, *cmd]
     logger.info("+ #{cmd.shelljoin}")
-    system("#{cmd.shelljoin} > #{LOG_PATH} 2>&1")
+    system("#{cmd.shelljoin} > #{Webhook::LOG_PATH} 2>&1")
   end
 end