perf trace: Document missing options

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1291168642-11402-15-git-send-email-shawn.bohrer@gmail.com>
Signed-off-by: NShawn Bohrer <shawn.bohrer@gmail.com>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/Documentation/perf-trace.txt

@@ -104,6 +104,13 @@ OPTIONS
         normally don't - this option allows the latter to be run in
         system-wide mode.
 
+-i::
+--input=::
+        Input file name.
+
+-d::
+--debug-mode::
+        Do various checks like samples ordering and lost events.
 
 SEE ALSO
 --------