revert change to edit_update(), since it's used when fileage may be

temporarily out of range, and fix a comment


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@3144 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -49,8 +49,8 @@ CVS code -
 	  do_page_down(), do_para_end(), do_next_word(), do_prev_word(),
 	  do_up(), do_down(), do_scroll_down(), do_right(), do_mouse(),
 	  do_gotolinecolumn(), do_delete(), begpar(), find_paragraph(),
-	  do_justify(), do_wrap(), remove_magicline(), edit_scroll(),
+	  do_justify(), do_wrap(), remove_magicline(), and
-	  and edit_update(). (DLR)
+	  edit_scroll(). (DLR)
 	- Add new -L/--nonewlines command line option, and new
 	  "nonewlines" rcfile option, to control whether nano adds
 	  magiclines to the ends of files.  Changes to read_file(),

src/text.c

@@ -1372,7 +1372,7 @@ void do_justify(bool full_justify)
 	    null_at(&openfile->current->data, break_pos);
 
 	    /* If the current line is the last line of the file, move
-	     * the last line of the file down. */
+	     * the last line of the file down to the next line. */
 	    if (openfile->filebot == openfile->current)
 		openfile->filebot = openfile->filebot->next;
 

src/winio.c

@@ -2842,7 +2842,7 @@ void edit_update(update_type location)
 	    goal = editwinrows - 1;
     }
 
-    for (; goal > 0 && foo != openfile->edittop; goal--)
+    for (; goal > 0 && foo->prev != NULL; goal--)
 	foo = foo->prev;
 
     openfile->edittop = foo;