Hints for gnome-screenshot in main

Hints

• asv-url-not-secure
  org.gnome.Screenshot.metainfo.xml:235 - http://www.gnome.org/friends/
  Consider using a secure (HTTPS) URL for this web link.
• asv-nonstandard-gnome-extension
  org.gnome.Screenshot.metainfo.xml:244 - kudos
  This tag is a GNOME-specific extension to AppStream and not part of the official specification. Do not expect it to work in all implementations and in all software centers.
• asv-description-first-word-not-capitalized
  org.gnome.Screenshot.metainfo.xml:250 -
  The description line does not start with a capitalized word, project name or number.
• asv-description-first-word-not-capitalized
  org.gnome.Screenshot.metainfo.xml:257 -
  The description line does not start with a capitalized word, project name or number.
• asv-developer-info-missing
  org.gnome.Screenshot.metainfo.xml -
  This component contains no `developer` element with information about its author.