Changed the text description of the "Rain noise" in the option screen.

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@366 3b4a5df2-a311-0410-b5c6-a8a6f20db521

Utils/_EnglishText.cpp

@@ -3496,7 +3496,7 @@ STR16	zOptionsScreenHelpText[] =
 	L"When ON, item shadows will be shown.",
 	L"When ON, weapon ranges will be shown in tiles.",
 	L"When ON, tracer effect will be shown for single shots.",
-	L"When ON, rain noises will be activated.",
+	L"When ON, you will hear rain noises when it is raining.",
 };