This also fixes a mistake of the jim command returning ERROR_xx
when function rtt_read_channel_info() returns error.
While there:
- format in a human readable way the output dictionary list, while
preserving the structure of its TCL data;
- add check for the number of parameters.
Change-Id: Ica2b623699d3a606d3992975c836dae96f74b26d
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7489
Tested-by: jenkins