Previous change to xenstored used "%d" to format conn->id while in fact
conn->id has "unsigned int" type, so "%u" should be used.
Fixes: 97f8555acb ("xenstored: print domain id in traces")
Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk@epam.com>
Reviewed-by: Juergen Gross <jgross@suse.com>