[PR PATCH] Manual.md: system groups should also use _ prefix

[ifreund <ifreund@users.noreply.github.com>]

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There is a new pull request by ifreund against master on the void-packages repository

https://github.com/ifreund/void-packages group-underscore
https://github.com/void-linux/void-packages/pull/26230

Manual.md: system groups should also use _ prefix


A patch file from https://github.com/void-linux/void-packages/pull/26230.patch is attached

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From 9d56346fd8cb104c08184a4019bcd9966850c120 Mon Sep 17 00:00:00 2001
From: Isaac Freund <ifreund@ifreund.xyz>
Date: Sun, 8 Nov 2020 23:33:38 +0100
Subject: [PATCH] Manual.md: system groups should also use _ prefix

---
 Manual.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Manual.md b/Manual.md
index 5b1266ba715..e1a99ecbcc0 100644
--- a/Manual.md
+++ b/Manual.md
@@ -1267,7 +1267,7 @@ The following variables can be used for this purpose:
 
 - `system_groups` This specifies the names of the new *system groups* to be created, separated
 by blanks. Optionally the **gid** can be specified by delimiting it with a
-colon, i.e `system_groups="mygroup:78"` or `system_groups="foo blah:8000"`.
+colon, i.e `system_groups="_mygroup:78"` or `system_groups="_foo _blah:8000"`.
 
 - `system_accounts` This specifies the names of the new **system users/groups** to be created,
 separated by blanks, i.e `system_accounts="_foo _blah:22"`. Optionally the **uid** and **gid**
@@ -1284,7 +1284,7 @@ The **system user** is created by using a dynamically allocated **uid/gid** in y
 and it's created as a `system account`, unless the **uid** is set. A new group will be created for the
 specified `system account` and used exclusively for this purpose.
 
-System accounts must be prefixed with an underscore to prevent clashing with names of user
+System accounts and groups must be prefixed with an underscore to prevent clashing with names of user
 accounts.
 
 > NOTE: The underscore policy does not apply to old packages, due to the inevitable breakage of