man: fix username prefix mentioned in manual for capsule users (#39573)

diff --git a/man/capsule@.service.xml b/man/capsule@.service.xml
index ea210533d4332a53b3bad96c22bbdc42910cd9d4..b9053e9f606384b9c380299749f81ece6ae05ece 100644 (file)
--- a/man/capsule@.service.xml
+++ b/man/capsule@.service.xml
@@ -83,7 +83,7 @@
 
     <para>Capsule names may be chosen freely by the user, however, they must be suitable as UNIX filenames
     (i.e. 255 characters max, and contain no <literal>/</literal>), and when prefixed with
-    <literal>p-</literal> be suitable as a user name matching strict POSIX rules, see <ulink
+    <literal>c-</literal> be suitable as a user name matching strict POSIX rules, see <ulink
     url="https://systemd.io/USER_NAMES">User/Group Name Syntax</ulink> for details.</para>
 
     <xi:include href="version-info.xml" xpointer="v256"/>