Comment # 12 on bug 1221763 from Tom de Vries

(In reply to Tom de Vries from comment #11)
> [ Doesn't work for me though on openSUSE Leap 15.4, I get "usage: capsh
> [args ...]", to be debugged. ]

Scripting problems...  This works:
...
$ cat sudo-allow-ptrace.sh
#!/bin/sh

shell="$1"
shift

set -x

sudo \
    -E capsh \
    --caps="cap_setpcap,cap_setuid,cap_setgid+ep cap_sys_ptrace+eip" \
    --keep=1 \
    --user="$USER" \
    --addamb="cap_sys_ptrace" \
    --shell=$shell -- \
    "$@"
$ sleep 60 & ./sudo-allow-ptrace.sh gdb -p $(pidof sleep)
  ...
$
...