Test creation of a binary file
before running this program, enter wgrib land.grb -d 1
                                                                
                                                  xx    xxxx    
   x                                             xx xxxxxxxxx   
              xxxxxxxxxxxxx                 xx x xxx   xxxxxx   
   xxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xx  xxx  xx  
 xxx xxxxxxxxxxxxxxxxxxxxxxx x      x  xxxxxxxxx   x            
  xxxxxxxxxxxxxxxxxxxxxxx   x            xxxxxxxxxxxxx          
xxxxxxxxxxxxxxxxxxxxxxxxx                 xxxxxxxxxxx x         
x x x   x xxxxxxxxxxxxxx                  xxxxxxxxxx           x
    xxxxx xxxxxxxxxxxx   x                 xxxxxxxx            x
xxx x  xxxxxxxxxxxxxxx                      xxxxxx             x
xxxxxxxxxx xxxxxxxxxxx                       xx               xx
xxxxxxx xxx  xxx xx                           x x             xx
xxxxxxxxx     x   xx                            xx            xx
xxxxxxxxx                                          xxx        xx
  xxxxxxx           x                              xxxx         
  xxxxxx            x    x                        xxxxxxx       
   xxxxx                                          xxxxxxxx      
   xxxxx                x                          xxxxxxx      
   xxxx x             xxxxx                         xxxxx       
   xxx               xxxxxxx                        xxxx        
    xx               xxxxxxx                        xxx         
                         xx                        xxx          
                                                   xx           
                                                   xx           
                                                    x           
                                                                
                                                                
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx                      x         x
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx        xxxxxxxxxxxxxx       xxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx       xxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
should see continents -- if you do, it works