Kconfig/init: change help text to match default value

Change the "If unsure" message to match the default value.

Signed-off-by: John Kacur <jkacur at gmail dot com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
diff --git a/init/Kconfig b/init/Kconfig
index 250e02c..7e6dae1 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -522,7 +522,7 @@
 	  Enabling this option will pass "-Os" instead of "-O2" to gcc
 	  resulting in a smaller kernel.
 
-	  If unsure, say N.
+	  If unsure, say Y.
 
 config SYSCTL
 	bool