lib/Kconfig.debug: fix help message for DEFAULT_HUNG_TASK_TIMEOUT

Added missing _secs in the help message of config DEFAULT_HUNG_TASK_TIMEOUT.
Signed-off-by: Jiaju Zhang <jjzhang@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

lib/Kconfig.debug

@@ -248,8 +248,9 @@ config DEFAULT_HUNG_TASK_TIMEOUT
 	  to determine when a task has become non-responsive and should
 	  be considered hung.
 
-	  It can be adjusted at runtime via the kernel.hung_task_timeout
-	  sysctl or by writing a value to /proc/sys/kernel/hung_task_timeout.
+	  It can be adjusted at runtime via the kernel.hung_task_timeout_secs
+	  sysctl or by writing a value to
+	  /proc/sys/kernel/hung_task_timeout_secs.
 
 	  A timeout of 0 disables the check.  The default is two minutes.
 	  Keeping the default should be fine in most cases.