- rename libbb's password helpers as suggested in libbb.h

my_getpwnam -> bb_xgetpwnam  /* dies on error */
  my_getgrnam -> bb_xgetgrnam  /* dies on error */
  my_getgrgid -> bb_getgrgid
  my_getpwuid -> bb_getpwuid
  my_getug    -> bb_getug

coreutils/whoami.c

@@ -32,7 +32,7 @@ extern int whoami_main(int argc, char **argv)
 	if (argc > 1)
 		bb_show_usage();
 
-	puts(my_getpwuid(NULL, geteuid(), -1));
+	puts(bb_getpwuid(NULL, geteuid(), -1));
 	/* exits on error */
 	bb_fflush_stdout_and_exit(EXIT_SUCCESS);
 }