tracing: Update documentation on tracepoint glob matching
b0f1a59a "tracing/filters: Use a different op for glob match" added glob matching to tracepoint filter strings. It uses the ftrace function tracing glob matching facility that allows for the wild card character (*) to be used at the start and/or end of the matching string. But the documentation still states that the filtering only allows for exact string matches. Cc: Li Zefan <lizefan@huawei.com> Signed-off-by:Steven Rostedt <rostedt@goodmis.org>
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