manual pages: properly escape backslashes

From the mdoc(7) extended introduction[0]:

>To output a backslash, use the escape sequence ‘\e’. Never use the
>escape sequence ‘\\’ in any context.

0: https://mandoc.bsd.lv/mdoc/intro/escaping.html

1 files changed, 2 insertions, 2 deletions

diff --git a/sfeed.5 b/sfeed.5
index cd422d0..8b2638e 100644
--- a/sfeed.5
+++ b/sfeed.5
@@ -17,8 +17,8 @@ SPACE character.
 Control characters are removed.
 .Pp
 The content field can contain newlines and these are escaped.
-TABs, newlines and '\\' are escaped with '\\', so it becomes: '\\t', '\\n'
-and '\\\\'.
+TABs, newlines and '\e' are escaped with '\e', so it becomes: '\et', '\en'
+and '\e\e'.
 Other whitespace characters except spaces are removed.
 Control characters are removed.
 .Pp