maint: avoid trivial syntax-check failure

* doc/coreutils.texi (tail invocation): Use @var{n}, not @var{N}.

diff --git a/doc/coreutils.texi b/doc/coreutils.texi
index dfaf4c9..fa7e015 100644 (file)
--- a/doc/coreutils.texi
+++ b/doc/coreutils.texi
@@ -2832,7 +2832,7 @@ operand specified as @samp{-}, when standard input is a FIFO or a pipe.
 
 With kernel inotify support, output is asynchronous and generally very prompt.
 Otherwise, @command{tail} sleeps for one second between checks---
-use @option{--sleep-interval=@var{N}} to change that default---which can
+use @option{--sleep-interval=@var{n}} to change that default---which can
 make the output appear slightly less responsive or bursty.
 
 @item -F