config help fixes

diff --git a/Config.in b/Config.in
index 30207c5..1cbdf61 100644
--- a/Config.in
+++ b/Config.in
@@ -411,7 +411,7 @@
 	  Most people should answer N.
 
 config DEBUG_PESSIMIZE
-	bool "Disable compiler optimizations."
+	bool "Disable compiler optimizations"
 	default n
 	depends on DEBUG
 	help