changed a runtime + to BIND in Amharic

src/amharic/ResAmh.gf

@@ -995,8 +995,8 @@ pronNP : (N,A,G,D : Str) -> PerNumGen -> NP = \N,A,G,D,png-> {
     {     
       s = \\c =>case c of
 		{
-		Gen|Dat => affix!c + word;
-		   _    => word + affix!c 
+		Gen|Dat => affix!c ++ Predef.BIND ++ word;
+		   _    => word ++ Predef.BIND ++ affix!c 
 		};
       a = {png = Per3 n Masc ; isPron = False };
       lock_NP = <>