Patch by Hans Ulrich Niedermann <gp@n-dimensional.de> (slightly
adapted):
* frontends/command-line/main.c: Only report progress information
if the user can see it. Same with confirmation of status messages.
git-svn-id: https://svn.code.sf.net/p/gphoto/code/trunk/libgphoto2@4016 67ed7778-7388-44ab-90cf-0a291f65f57c