edit: don't recalculate line indexes

[Lauri Tulmin]

don't recalculate line indexes if number of lines doesn't change
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Index: dlls/user/edit.c
===================================================================
RCS file: /home/wine/wine/dlls/user/edit.c,v
retrieving revision 1.12
diff -u -p -r1.12 edit.c
--- dlls/user/edit.c	17 Jan 2005 19:31:48 -0000	1.12
+++ dlls/user/edit.c	18 Jan 2005 23:25:22 -0000
@@ -1253,7 +1256,7 @@ static void EDIT_BuildLineDefs_ML(EDITST
 			es->line_count--;
 		}
 	}
-	else
+	else if (delta != 0)
 	{
 		while (current_line)
 		{