doc: daemon: update documentation around Inline::C

`~/.cache/public-inbox/inline-c' is supported, nowadays
for convenience, but Inline::C usage will remain opt-in.

diff --git a/Documentation/public-inbox-daemon.pod b/Documentation/public-inbox-daemon.pod
index 6091e8e6454fe927e730eccd37455a557b9d6582..747c14527851d0348ef700aff20553fb783d8b46 100644 (file)
--- a/Documentation/public-inbox-daemon.pod
+++ b/Documentation/public-inbox-daemon.pod
@@ -142,8 +142,8 @@ enables the use of L<vfork(2)> which speeds up subprocess
 spawning with the Linux kernel.
 
 public-inbox will never enable L<Inline::C> automatically without
-this environment variable set.  See L<Inline> and L<Inline::C>
-for more details.
+this environment variable set or C<~/.cache/public-inbox/inline-c>
+created by a user. See L<Inline> and L<Inline::C> for more details.
 
 =back