What is going on? Should I be worried? What's the cure?
The following list of files have FAILED the md5sum comparison test. This means that the file has been changed in some way. This could be a result of an OS update or application upgrade. If the change is unexpected it should be investigated:
/usr/bin/gdk-pixbuf-query-
loaders-64: FAILED
/bin/gdk-pixbuf-query-loaders-64: FAILED