Don't make aircraft pay to fly over river

[Jim Kingdon]

The following fix lets aircraft (in the standard game) cross a river
just like other terrain.

2000-10-18  Jim Kingdon  < http://sourceforge.net/users/kingdon >

	* stdunit.g: Only armor should have to pay an ACP to cross a river.

Index: lib/stdunit.g
===================================================================
RCS file: /cvs/xconq/xconq/lib/stdunit.g,v
retrieving revision 1.5
diff -u -r1.5 stdunit.g
--- stdunit.g	2000/10/11 15:17:35	1.5
+++ stdunit.g	2000/10/19 01:08:15
@@ -182,6 +182,9 @@
   (ship road 99)
   (u* ice 99)
   (aircraft ice 1)
+  ;; Armor take an extra ACP to cross a river; everyone else is unaffected
+  (u* river 0)
+  (a river 1)
   )
 
 (table mp-to-leave-terrain