perf version: Fix segfault due to missing OPT_END()

'perf version' on powerpc segfaults when used with non-supported
option:
  # perf version -a
  Segmentation fault (core dumped)

Fix this.

Signed-off-by: Ravi Bangoria <[email protected]>
Reviewed-by: Kamalesh Babulal <[email protected]>
Tested-by: Mamatha Inamdar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kamalesh Babulal <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

Author: Ravi Bangoria

tools/perf/builtin-version.c

@@ -19,6 +19,7 @@ static struct version version;
 static struct option version_options[] = {
 	OPT_BOOLEAN(0, "build-options", &version.build_options,
 		    "display the build options"),
+	OPT_END(),
 };
 
 static const char * const version_usage[] = {