* browser.c (browser_init): Set column width to something sane when 
          initializing in a directory with no file entries.  Fixes Savannah
          bug 24163 found (and initial patch) by Paul Wise.  



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4414 35c25a1d-7b9e-4130-9fde-d3aeb78583b8