[PATCH] libbb: remove unnecessary argument to nonblock_immune_read

[Rich Felker]

On Sun, Apr 19, 2015 at 10:50:25AM +0100, Ron Yorston wrote:
> The loop_on_EINTR argument to nonblock_immune_read is always set to 1.
> 
> function                                             old     new   delta
> xmalloc_reads                                        200     195      -5
> pgetc                                                488     483      -5
> argstr                                              1313    1308      -5
> nonblock_immune_read                                 123      86     -37
> ------------------------------------------------------------------------------
> (add/remove: 0/0 grow/shrink: 0/4 up/down: 0/-52)             Total: -52 bytes

An even better question is whether the looping code could be
eliminated entirely. Are any of the bb commands that use this code
installing interurpting signal handlers? If not then the code for
supporting EINTR is useless.

Rich