taskstats: modify taskstats version

After adding "delay max" and "delay min" to the taskstats structure, the
taskstats version needs to be updated.

Link: https://lkml.kernel.org/r/[email protected]
Fixes: f65c64f ("delayacct: add delay min to record delay peak")
Signed-off-by: Wang Yaxin <[email protected]>
Signed-off-by: Kun Jiang <[email protected]>
Reviewed-by: xu xin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

Author: Wang Yaxin

include/uapi/linux/taskstats.h

@@ -34,7 +34,7 @@
  */
 
 
-#define TASKSTATS_VERSION	14
+#define TASKSTATS_VERSION	15
 #define TS_COMM_LEN		32	/* should be >= TASK_COMM_LEN
 					 * in linux/sched.h */