% means buffer is read-only and * means it is modified.\n\
For a modified read-only buffer, %* gives % and %+ gives *.\n\
%s -- print process status. %l -- print the current line number.\n\
+ %c -- print the current column number (this makes editing slower).\n\
%p -- print percent of buffer above top of window, or Top, Bot or All.\n\
%P -- print percent of buffer above bottom of window, perhaps plus Top,\n\
or print Bottom or All.\n\