BUILD: contrib/da: remove an "unused" warning

The rcsid variable is static an unused, causing a build warning. Let's
just add __attribute__((unused)) to shut the warning.

This may be backported to 2.0.

(cherry picked from commit ed295cc3449537324a74059647fa35984bc78ab1)
Signed-off-by: Willy Tarreau <w@1wt.eu>
1 file changed