[pkg-go] Bug#798144: gb: description contains copy/pasted unused definition from documentation

[Josh Triplett]

Package: gb
Severity: minor

The gb description contains:

> A gb project is a folder on disk that contains a subdirectory named
> src/. That's it, no environment variables to set. For the rest of this
> document we'll refer to your gb project as $PROJECT.

The "For the rest of this document" sentence should not appear in the
package description.

- Josh Triplett

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.1.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)