On 07/15/2015 10:36 AM, Eric Blake wrote: > [resending without a signature - I didn't see my reply land at > http://debbugs.gnu.org/21065, so I wonder if the list filters are > accidentally eating GPG-signed mail again]
Maybe I should have been more patient. Just after sending, I got all my messages, and now see them on the web page; on the other hand, the web page shows mails out of order: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=21065#21 was sent later than http://debbugs.gnu.org/cgi/bugreport.cgi?bug=21065#24 No idea where the delays are occurring, or if it is worth worrying about, or even if sending a message without a signature forced a flush of some pending queue. > Here's what POSIX says: > > http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap12.html > > Guideline 13: > For utilities that use operands to represent files to be opened for > either reading or writing, the '-' operand should be used to mean only > standard input (or standard output when it is clear from context that an > output file is being specified) or a file named -. But to add one more piece of information, POSIX also says: Where a utility described in the Shell and Utilities volume of POSIX.1-2008 as conforming to these guidelines is required to accept, or not to accept, the operand '-' to mean standard input or output, this usage is explained in the OPERANDS section. Otherwise, if such a utility uses operands to represent files, it is implementation-defined whether the operand '-' stands for standard input (or standard output), or for a file named -. and our change to 'tee' for 8.24 is correct, because 'tee' explicitly documented that '-' shall not mean stdout; whereas for 'touch', POSIX is silent (and it is therefore implementation-defined) about behavior of 'touch -'. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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