[rygel] build: Do not write man page during test

[Jens Georg <jensgeorg src gnome org>]

commit 039892e9e47e9ac3de0a8b3577c835515de3bc7c
Author: Jens Georg <mail jensge org>
Date:   Mon Jan 3 18:48:29 2022 +0100

    build: Do not write man page during test
    
    --noout was not the correct option for no output

 doc/man/meson.build | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/doc/man/meson.build b/doc/man/meson.build
index 043efe2f5..e4ddefbcd 100644
--- a/doc/man/meson.build
+++ b/doc/man/meson.build
@@ -34,6 +34,7 @@ if xsltproc.found()
             xsltproc,
             xlstproc_flags,
             '--noout',
+            '--nowrite',
             stylesheet,
             'rygel.xml'
         ]