/usr/share/drupal6/ is in drupal6-mod-imageapi 1.10-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/drupal6/modules/
/usr/share/drupal6/modules/imageapi/
/usr/share/drupal6/modules/imageapi/imageapi.info
/usr/share/drupal6/modules/imageapi/imageapi.install
/usr/share/drupal6/modules/imageapi/imageapi.module
/usr/share/drupal6/modules/imageapi/imageapi_gd.info
/usr/share/drupal6/modules/imageapi/imageapi_gd.install
/usr/share/drupal6/modules/imageapi/imageapi_gd.module
/usr/share/drupal6/modules/imageapi/imageapi_imagemagick.info
/usr/share/drupal6/modules/imageapi/imageapi_imagemagick.module
/usr/share/drupal6/modules/imageapi/imagefilter.inc
/usr/share/drupal6/modules/imageapi/imagerotate.inc