Fix: --image parameter takes value

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/cli.rs b/src/cli.rs
index f9060b3..b021ccf 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -82,6 +82,8 @@ pub fn cli<'a>() -> App<'a> {
             .arg(Arg::with_name("image")
                 .required(true)
                 .multiple(false)
+                .takes_value(true)
+                .value_name("IMAGE NAME")
                 .short('I')
                 .long("image")
                 .help("Name of the docker image to use")