[gedit] build: host_machine.system() returns 'darwin', not 'ios'

[Sébastien Wilmet <swilmet src gnome org>]

commit c3b4016da7f412ca6fc3bd98ed20758382c6e2f3
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Thu Dec 5 15:43:52 2019 +0100

    build: host_machine.system() returns 'darwin', not 'ios'
    
    According to the Meson docs. Not tested.

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index f2047a13e..58dcfba59 100644
--- a/meson.build
+++ b/meson.build
@@ -105,7 +105,7 @@ configure_file(
 module_suffix = []
 # Keep the autotools convention for shared module suffix because GModule
 # depends on it: https://gitlab.gnome.org/GNOME/glib/issues/520
-if ['darwin', 'ios'].contains(host_machine.system())
+if host_machine.system() == 'darwin'
   module_suffix = 'so'
   add_languages('objc')
 endif