setpgrp on System V

[Chuck L. Peterson]

The library calls setpgrp and getpgrp both use the setpgrp() system call.
Setgrp() gets translated to setgrp(1), and getpgrp gets translated to 
setpgrp(0).  The manuals are consistent with the library call and
say that setpgrp takes no argument.  Are there any other cases where
the C library changes arguments to system calls?  This seems odd.

Chuck L. Peterson
 ...!sun!altos86!clp