Remove non-UTF-8 character (this is a NO-BREAK SPACE character, encoded in
ISO-8859-1) to fix build failure with 'glib-mkenums' in GLib 2.54.2+.

Patch from <https://github.com/macports/macports-ports/commit/1f3efc8e65cc060d1701407bd1e56e62e6bd9c55>.

--- a/libgnome/gnome-config.h	2009-04-23 04:29:13.000000000 -0500
+++ b/libgnome/gnome-config.h	2017-10-04 02:17:22.000000000 -0500
@@ -270,7 +270,7 @@ void gnome_config_clean_key_ (const char
 #define gnome_config_private_clean_key(path) \
 	(gnome_config_clean_key_((path),TRUE))
 
-/* returns the true filename of the config file */
+/* returns the true filename of the config file */
 #define gnome_config_get_real_path(path) \
 	(g_build_filename (gnome_user_dir_get(),(path),NULL))
 #define gnome_config_private_get_real_path(path) \
ption>
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<div class='path'>path: <a href='/guix/log/?id=8438d18886da243472017fbc0d122022e595483d'>root</a>/<a href='/guix/log/gnu?id=8438d18886da243472017fbc0d122022e595483d'>gnu</a>/<a href='/guix/log/gnu/system?id=8438d18886da243472017fbc0d122022e595483d'>system</a>/<a href='/guix/log/gnu/system/accounts.scm?id=8438d18886da243472017fbc0d122022e595483d'>accounts.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/system/accounts.scm?id=8438d18886da243472017fbc0d122022e595483d&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-10-05 23:14:54 +0200'>2023-10-05</span></td><td><a href='/guix/commit/gnu/system/accounts.scm?id=97927608cb4f9c5d721115f1cb638de17ac38e62'>Revert "system: accounts: Export &lt;user-account&gt;."</a><span class='msg-avail'>...<span class='msg-tooltip'>This reverts commit 03795e2ba27424fc98957da00f6c71325e7ae425.
Fixes &lt;https://issues.guix.gnu.org/66279&gt;.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-08-20 02:00:00 +0200'>2023-08-20</span></td><td><a href='/guix/commit/gnu/system/accounts.scm?id=5a2c3352d8f8a08a5ba01542a3f282799e503d33'>Revert "gnu: system: Add home-directory-permissions field to &lt;user-account&gt;."</a><span class='msg-avail'>...<span class='msg-tooltip'>This reverts commit e9a5eebc785cb843034b38c5c5a6dd10904bdf2a, which
as far as I can tell breaks system roll-backs thusly:

[...]
In gnu/build/accounts.scm:
   239:27  3 (_ #&lt;&lt;password-entry&gt; name: "root" password: "x" uid: 0 gid: 0 real-name: "System &gt;)
In unknown file:
           2 (string-join ("root" "x" "0" "0" "System administrator" "/root" #t) ":" #&lt;undefined&gt;)
In ice-9/boot-9.scm:
  1685:16  1 (raise-exception _ #:continuable? _)
  1685:16  0 (raise-exception _ #:continuable? _)

ice-9/boot-9.scm:1685:16: In procedure raise-exception:
In procedure string-append: Wrong type (expecting string): #t
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2023-08-25 15:12:54 +0200'>2023-08-25</span></td><td><a href='/guix/commit/gnu/system/accounts.scm?id=e9a5eebc785cb843034b38c5c5a6dd10904bdf2a'>gnu: system: Add home-directory-permissions field to &lt;user-account&gt;.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/system/accounts.scm (&lt;user-account&gt;)[home-directory-permissions]: New
field.
(user-account-home-directory-permissions): New accessor.
* gnu/build/activation.scm (activate-users+groups): Use home directory
permission bits from the user account object.
* doc/guix.texi (User Accounts): Document new field.

Signed-off-by: Josselin Poiret &lt;dev@jpoiret.xyz&gt;
</span></span></td><td>David Thompson</td></tr>
<tr><td><span title='2023-07-26 10:40:16 -0400'>2023-07-26</span></td><td><a href='/guix/commit/gnu/system/accounts.scm?id=03795e2ba27424fc98957da00f6c71325e7ae425'>system: accounts: Export &lt;user-account&gt;.</a></td><td>Maxim Cournoyer</td></tr>