rcu: Clarify CONFIG_RCU_EQS_DEBUG help text

Reported-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com>

lib/Kconfig.debug

@@ -1379,7 +1379,7 @@ config RCU_TRACE
 	  Say N if you are unsure.
 
 config RCU_EQS_DEBUG
-	bool "Use this when adding any sort of NO_HZ support to your arch"
+	bool "Provide debugging asserts for adding NO_HZ support to an arch"
 	depends on DEBUG_KERNEL
 	help
 	  This option provides consistency checks in RCU's handling of