Fetch-pack's verbose mode is more of a debugging mode (and
in fact takes two "-v" arguments to trigger via the
porcelain layer). Let's mention the server version as
another possible item of interest.

Signed-off-by: Jeff King <p...@peff.net>
Like I mentioned before, I'm lukewarm on this one, because I doubt
anybody actually uses this debugging information. If we drop it, it
makes sense to drop 3/4, too, which is just infrastructure for this.

 builtin/fetch-pack.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c
index bc7a0f9..bfe31ee 100644
--- a/builtin/fetch-pack.c
+++ b/builtin/fetch-pack.c
@@ -823,8 +823,14 @@ static struct ref *do_fetch_pack(int fd[2],
                        fprintf(stderr, "Server supports ofs-delta\n");
        } else
                prefer_ofs_delta = 0;
-       if (server_supports("agent"))
+       if (server_supports("agent")) {
                agent_supported = 1;
+               if (args.verbose) {
+                       char *v = server_feature_value("agent");
+                       fprintf(stderr, "Server version is %s\n", v);
+                       free(v);
+               }
+       }
        if (everything_local(&ref, nr_match, match)) {
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