tracing: Fix indentation of return statement in print_trace_fmt()

tracing: Fix indentation of return statement in print_trace_fmt()

The return statement inside the nested if block in print_trace_fmt()
is not properly indented, making the code structure unclear. This was
flagged by smatch as a warning.

Add proper indentation to the return statement to match the kernel
coding style and improve readability.

Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://patch.msgid.link/20260210153903.8041-1-tttturtleruss@gmail.com
Signed-off-by: Haoyang LIU <tttturtleruss@gmail.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>