K 10
svn:author
V 6
jilles
K 8
svn:date
V 27
2013-05-03T15:28:31.534472Z
K 7
svn:log
V 477
sh: Improve error handling in read builtin:

* If read -t times out, return status as if interrupted by SIGALRM
  (formerly 1).
* If a trapped signal interrupts read, return status 128+sig (formerly 1).
* If [EINTR] occurs but there is no trap, retry the read (for example
  because of a SIGWINCH in interactive mode).
* If a read error occurs, write an error message and return status 2.

As before, a variable assignment error returns 2 and discards the remaining
data read.

END