trace-cmd listen: Replace tab with spaces in help output

The bash completions of trace-cmd commands uses the -h to find the options
to finish the completions with. trace-cmd listen -h had a tab before "-l"
which caused the completions to miss it. Not to mention, it caused -l not to
be in line with the other options.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
1 file changed