Subject: [bug#54125] [PATCH] gnu: ntk, non-sequencer: Replace broken giturls from non.tuxfamily.org with github mirrors

From: Sughosha <[email-masked]>
Date: Wed, 23 Feb 2022 22:53:32 +0530

Yes, I confirm. NTK is Non's fork of FLTK. This github mirror is
unofficial but it's read-only mirror of the same and the checksum
matches properly as it was (hasn't changd in this patch). Even Arch
Linux uses this mirror in its repository now (see
here:<https://github.com/archlinux/svntogit-community/blob/packages/ntk/trunk/PKGBUILD#L15
>).