Re: [PATCH 2/2] emacs: Fix "no such file or directory" error

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+Date: Sun, 9 Jun 2013 22:15:34 -0400\r
+From: Austin Clements <amdragon@MIT.EDU>\r
+To: Mark Walters <markwalters1009@gmail.com>\r
+Subject: Re: [PATCH 2/2] emacs: Fix "no such file or directory" error\r
+Message-ID: <20130610021534.GB22196@mit.edu>\r
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+\r
+Quoth Mark Walters on Jun 09 at 10:16 am:\r
+> \r
+> Both of these patches look good to me +1. I was able to reproduce both\r
+> bugs pretty reliably (the first one always unless masked by the second\r
+> one which occurred about half the time). With these patches I cannot\r
+> trigger either. Also all tests pass.\r
+> \r
+> My only tiny concern is I couldn't find any documentation on whether the\r
+> return value of the filter-function matters at all. Austin's original\r
+> fix (via irc) returned t and this returns nil in the failing case (i.e.,\r
+> when results-buf is dead).\r
+\r
+Mm, interesting.  To be fair, my choice of "t" for the original fix\r
+was completely arbitrary.  I think you're right that the Emacs\r
+documentation doesn't have anything to say about the return values of\r
+filter functions.  Furthermore, the example filter functions they give\r
+don't have meaningful return values, so I'm pretty sure this is safe.\r
+Also the code that calls the filter discards its result.\r