commands: use completion from go-opt

Implement command completion with complete struct field tags from the
get-opt library introduced earlier.

Changelog-changed: Improved command completion.
Signed-off-by: Robin Jarry <robin@jarry.cc>
Reviewed-by: Koni Marti <koni.marti@gmail.com>
Tested-by: Moritz Poldrack <moritz@poldrack.dev>
Tested-by: Inwit <inwit@sindominio.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/main.go b/main.go
index dc7d0267..75069e13 100644
--- a/main.go
+++ b/main.go
@@ -143,7 +143,7 @@ func getCompletions(cmdline string) ([]string, string) {
 		for _, set := range cmds {
 			for _, n := range set.Names() {
 				if strings.HasPrefix(n, cmdline) {
-					completions = append(completions, n)
+					completions = append(completions, n+" ")
 				}
 			}
 		}