To me, corrections indicate that an organisation cares about publishing truth; lack of corrections indicate a lack of care. Everyone makes mistakes now and then, that's unavoidable in a deadline-driven business such as news reporting. How the news organisations deal with them matters. Printing corrections suggests a higher standard of care to ensure that corrections won't be necessary in the first place.
I mostly agree with the "lack of care" part...but sadly we
also have sources out there
that realize that they can grind their political axe by letting their untruth remain...indefinitely.
Good sources both work hard to get the facts right in the first place, and then, when they
do get
something wrong, move to correct it as soon as the error is spotted...hopefully by themselves.
This will earn them respect from thinking people...and ridicule from the dumber.