[Freeciv-Dev] (PR#2813) fix some compiler warnings

["Jason Short via RT" <rt@xxxxxxxxxxxxxx>]

The attached patch is needed for me to avoid three trivial compiler 
warnings when compiling with DEBUG or NDEBUG.

jason

Index: client/attribute.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/client/attribute.c,v
retrieving revision 1.15
diff -u -r1.15 attribute.c
--- client/attribute.c  2002/09/28 01:36:19     1.15
+++ client/attribute.c  2003/01/13 22:45:24
@@ -316,8 +316,9 @@
   }
 
   if (data_length != 0) {
-    bool inserted = hash_insert(attribute_hash, pkey, pvalue);
-    assert(inserted);
+    if (!hash_insert(attribute_hash, pkey, pvalue)) {
+      assert(FALSE);
+    }
   }
 }
 
Index: common/player.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/common/player.c,v
retrieving revision 1.107
diff -u -r1.107 player.c
--- common/player.c     2003/01/05 23:24:52     1.107
+++ common/player.c     2003/01/13 22:45:25
@@ -25,7 +25,6 @@
 #include "government.h"
 #include "idex.h"
 #include "improvement.h"
-#include "log.h"
 #include "map.h"
 #include "mem.h"
 #include "rand.h"
Index: common/tech.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/common/tech.c,v
retrieving revision 1.54
diff -u -r1.54 tech.c
--- common/tech.c       2003/01/09 16:03:43     1.54
+++ common/tech.c       2003/01/13 22:45:25
@@ -22,7 +22,6 @@
 
 #include "fcintl.h"
 #include "game.h"
-#include "log.h"
 #include "player.h"
 #include "support.h"
 #include "shared.h" /* ARRAY_SIZE */