(mode-line-format): Describe above case in doc string.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/buffer.c b/src/buffer.c
index 368da4763a5..1f66deb2455 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -5501,6 +5501,8 @@ A string is printed verbatim in the mode line except for %-constructs:
   %P -- print percent of buffer above bottom of window, perhaps plus Top,
         or print Bottom or All.
   %n -- print Narrow if appropriate.
+  %R -- print R or hyphen.  R means that default-directory is on a
+        remote machine.
   %t -- visited file is text or binary (if OS supports this distinction).
   %z -- print mnemonics of keyboard, terminal, and buffer coding systems.
   %Z -- like %z, but including the end-of-line format.