From 1ffc4f7dcb1f78325d0b848fba8bebc0f31e46f4 Mon Sep 17 00:00:00 2001
From: Manatsu Takahashi <takahashi.manatsu@gmail.com>
Date: Sun, 8 Dec 2019 22:20:53 +0900
Subject: [PATCH] Make the manpage of su clearer

---
 login-utils/su.1 | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/login-utils/su.1 b/login-utils/su.1
index 6ab3e4a77e..3a732799a7 100644
--- a/login-utils/su.1
+++ b/login-utils/su.1
@@ -8,10 +8,17 @@ su \- run a command with substitute user and group ID
 .B su
 allows to run commands with a substitute user and group ID.
 .PP
-When called without arguments,
+When called with no
+.IR user
+specified,
 .B su
 defaults to running an interactive shell as
 .IR root .
+When
+.IR user
+is specified, an additional
+.IR argument
+can be supplied, in which case it is passed to the shell.
 .PP
 For backward compatibility,
 .B su
-- 
2.39.5