Bug#859247: vim-runtime: syntax/debsources.vim highlights stretch as unsupported

[Steve Cotton]

Package: vim-runtime
Version: 2:8.0.0197-3
Severity: minor

Dear Vim maintainers,

The syntax highlighting for /etc/apt/sources.list highlights
"jessie" or "sid" in the good color, leaves unrecognised distro
names unhighlighted, but highlights "stretch" in the error color.

The problem seems to be that "stretch" matches "etch":

diff --git a/syntax/debsources_with_etch_fix.vim b/syntax/debsources_with_etch_fix.vim
index 390c430..735201d 100644
--- a/syntax/debsources_with_etch_fix.vim
+++ b/syntax/debsources_with_etch_fix.vim
@@ -29,7 +29,7 @@ let s:supported = [
       \ ]
 let s:unsupported = [
       \ 'buzz', 'rex', 'bo', 'hamm', 'slink', 'potato',
-      \ 'woody', 'sarge', 'etch', 'lenny',
+      \ 'woody', 'sarge', '\<etch', 'lenny',
       \
       \ 'warty', 'hoary', 'breezy', 'dapper', 'edgy', 'feisty',
       \ 'gutsy', 'hardy', 'intrepid', 'jaunty', 'karmic', 'lucid',

Thanks,
Steve

-- System Information:
Debian Release: 9.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

vim-runtime depends on no packages.

Versions of packages vim-runtime recommends:
ii  vim            2:8.0.0197-3
ii  vim-gtk [vim]  2:8.0.0197-3
ii  vim-tiny       2:8.0.0197-3

vim-runtime suggests no packages.

-- no debconf information