fix #H6189 - Eyes of the Overworld database entry

The phrasing of the data.base entry for the Eyes of the Overworld
reads as if it is continuing some passage in a reference book, but
that comes off strange when using '/' to see it.  Rephrase it.

data.base could stand to have an entry for 'lenses'....

diff --git a/dat/data.base b/dat/data.base
index ebb781af788894a3e4e5cda848a36f036e11b0cf..4109127109f95d505877c4fd3626e61d3dfef9ac 100644 (file)
--- a/dat/data.base
+++ b/dat/data.base
@@ -1,5 +1,5 @@
 # NetHack 3.6  data.base
-# $NHDT-Date: 1524683801 2018/04/25 19:16:41 $  $NHDT-Branch: NetHack-3.6.0 $:$NHDT-Revision: 1.84 $
+# $NHDT-Date: 1545359287 2018/12/21 02:28:07 $  $NHDT-Branch: NetHack-3.6.2-beta01 $:$NHDT-Revision: 1.87 $
 #      Copyright (c) 1994, 1995, 1996 by the NetHack Development Team
 #      Copyright (c) 1994 by Boudewijn Wayers
 #      NetHack may be freely redistributed.  See license for details.
@@ -1629,9 +1629,19 @@ eye of the aethiopica
        the power to instantly open a portal to any other area of the
        dungeon, allowing its invoker to travel quickly between
        areas.
+# note:  The Eyes of the Overworld is the title of Jack Vance's sequel
+# to The Dying Earth and in it the 'Eyes' were separate "cusps" that
+# needed to be worn like contact lenses, one on each eyeball.  Wearing
+# just one and attempting to look with both eyes caused instant stun.
+# And when wearing two you couldn't see normal world, only a projection
+# of it that had similar topology but where everything was "better".
+# NetHack simplifies things:  a pair of lenses is a single item like
+# spectacles (eyeglasses), and the effect of wearing these lenses has
+# been changed to be useful to game play (Xray vision).  [The quote is
+# not derived from the book.]
 eyes of the overworld
-       ... and finally there is "the Eyes of the Overworld".  This
-       obscure artifact pushes the wearer's view sense into the
+       The Eyes of the Overworld is a rather obscure artifact.
+       These magical lenses push the wearer's view sense into the
        "overworld" -- another name for a segment of the Astral Plane.
        Usually, there is nothing to be seen.  However, the wearer
        is also able to look back and see the area around herself,