appender 20061122.  Copyright (c) 2006 Allegro Consultants, Inc.                                                                    
Author: sieler@gmail.com                                                                                                            
                                                                                                                                    
This is APPENDER, a utility designed to append text to a file.                                                                      
                                                                                                                                    
It is intended to be used in place of doing a shell command like:                                                                   
                                                                                                                                    
   echo text >> filename                                                                                                            
                                                                                                                                    
because the shell's ">>" will tend to allocate *many* extents in                                                                    
the output file.                                                                                                                    
                                                                                                                                    
Sample usages:                                                                                                                      
    appender "text foo"                                                                                                             
    xeq appender.pub.allegro "more text foo"                                                                                        
    run appender;info="yet more text foo"                                                                                           
or, within the POSIX shell, assuming "appender" is in your path:                                                                    
    appender this is some text foo                                                                                                  
    appender this is some text ./foo                                                                                                
                                                                                                                                    
Note that the last two examples use different files:                                                                                
   FOO, an MPE-named file                                                                                                           
   ./foo, an HFS-named file                                                                                                         
                                                                                                                                    
Note: I considered having options specified via PARM, but the                                                                       
shell tends to invoke programs with non-0 PARM values, which                                                                        
makes this mechanism less useful for programs that will be                                                                          
invoked from the shell.                                                                                                             
                                                                                                                                    
Note: the program is shipped as an NMPRG because the shell                                                                          
does not correctly invoke CM programs with INFO strings.                                                                            

appender 20140821