Minor copy edit in agedu's man page, and also added another paragraph

[sgt/agedu] / agedu.but

diff --git a/agedu.but b/agedu.but
index bb3d4b5..c81c16b 100644 (file)
--- a/agedu.but
+++ b/agedu.but
@@ -578,12 +578,11 @@ three months ago or later.
 
 \dt \cw{--address} \e{addr}[\cw{:}\e{port}]
 
-\dd Specifies the network address and port number on which
-\cw{agedu} should listen when running its web server. If you want
-\cw{agedu} to listen for connections coming in from any source, you
-should probably specify the special IP address \cw{0.0.0.0}. If the
-port number is omitted, an arbitrary unused port will be chosen for
-you and displayed.
+\dd Specifies the network address and port number on which \cw{agedu}
+should listen when running its web server. If you want \cw{agedu} to
+listen for connections coming in from any source, specify the address
+as the special value \cw{ANY}. If the port number is omitted, an
+arbitrary unused port will be chosen for you and displayed.
 
 \lcont{
 
@@ -653,7 +652,7 @@ newline, or else it will be considered part of the password).
 
 \dt \cw{--title} \e{title}
 
-\dd Specify the string that appears at the start of the <title>
+\dd Specify the string that appears at the start of the \cw{<title>}
 section of the output HTML pages. The default is \cq{agedu}. This
 title is followed by a colon and then the path you're viewing within
 the index file. You might use this option if you were serving
@@ -697,7 +696,18 @@ bothers re-reading it if it has; programs which do this include
 \cw{rsync}(\e{1}) and \cw{make}(\e{1}). Such programs will fail to
 update the atime of unmodified files despite depending on their
 continued existence; a directory full of such files will be reported
-as disused by \cw{agedu} but deleting them will cause trouble.
+as disused by \cw{agedu} even in situations where deleting them will
+cause trouble.
+
+Finally, of course, \cw{agedu}'s normal usage mode depends critically
+on the OS providing last-access times which are at least approximately
+right. So a file system mounted with Linux's \cq{noatime} option, or
+the equivalent on any other OS, will not give useful results!
+(However, the Linux mount option \cq{relatime}, which distributions
+now tend to use by default, should be fine for all but specialist
+purposes: it reduces the accuracy of last-access times so that they
+might be wrong by up to 24 hours, but if you're looking for files that
+have been unused for months or years, that's not a problem.)
 
 \U LICENCE