Sane (scanner) applications have become too noisy

Support Software & Applications
1

Using xsane or skanlite I am recently getting tons of html on the standard output. At fault is the escl driver. Disabling it in the sane dll.conf file silences operation.
In principle there should be an env variable for it:

 SANE_DEBUG_ESCL
              If  the  library  was compiled with debug support enabled, this environment variable controls the debug level for this backend.  E.g., a
              value of 128 requests all debug output to be printed.  Smaller levels reduce verbosity.

Setting it to 0 seems to do nothing though. Any clue? This is rather disturbing.

2

Switching to the sane-airscan driver works around the issue.

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