[gupnp/fix-windows-compilation] Fix required keyword for Windows build

[Jan-Michael Brummer <jbrummer src gnome org>]

commit 36504965a64391a20d5a5e6a3efea3798da8e758
Author: Jan-Michael Brummer <jan brummer tabos org>
Date:   Thu Apr 2 17:51:49 2020 +0200

    Fix required keyword for Windows build

 libgupnp/meson.build | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/libgupnp/meson.build b/libgupnp/meson.build
index 816cd41..fb0f77d 100644
--- a/libgupnp/meson.build
+++ b/libgupnp/meson.build
@@ -4,8 +4,8 @@ system_deps = [guul.get_variable('guul')]
 
 if host_machine.system() == 'windows'
     context_manager_impl += 'gupnp-windows-context-manager.c'
-    system_deps += cc.find_library('ws2_32', required : 'true')
-    system_deps += cc.find_library('iphlpapi', required : 'true')
+    system_deps += cc.find_library('ws2_32', required : true)
+    system_deps += cc.find_library('iphlpapi', required : true)
 else
     if ifaddrs_available
         context_manager_impl += 'gupnp-unix-context-manager.c'