[fix] click echo to not fail in bdt dev install

click.echo does not behave like print: Only one argument will be printed
The next args are destination file, and some flags.

bob/devtools/scripts/development.py

@@ -45,7 +45,7 @@ def install(env_name, folders):
             cmd,
             shell=True,
         )
-        click.echo("Installed package using the command:", cmd)
+        click.echo(f"Installed package using the command: {cmd}")
 
 
 @click.command(epilog="See bdt dev --help for examples of this command.")