Closed a forgotten file pointer in os_info that would make Windows backups of os_info.db fail

git-svn-id: http://anope.svn.sourceforge.net/svnroot/anope/stable@2893 5417fbe8-f217-4b02-8779-1006273d7864

src/modules/os_info.c

@@ -399,6 +399,7 @@ int mLoadData(void)
                 free(type);
             }
         }
+        fclose(in);
     }
     return ret;
 }