[libglnx/wip/smcv/warnings] build: Reduce default warning level from 3 to 2

[Simon McVittie <smcv src gnome org>]

commit af02572e6bd5d36fd5c45252723ec8916e6c220f
Author: Simon McVittie <smcv collabora com>
Date:   Wed Jul 27 13:57:19 2022 +0100

    build: Reduce default warning level from 3 to 2
    
    Warning level 2 is -Wall -Wextra, and warning level 3 adds -Wpedantic
    (warnings about use of non-ISO extensions). libglnx is intentionally
    using non-ISO features, so -Wpedantic is counterproductive.
    
    Signed-off-by: Simon McVittie <smcv collabora com>

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index 4787c85..38ec2ea 100644
--- a/meson.build
+++ b/meson.build
@@ -7,7 +7,7 @@ project(
   'c',
   default_options : [
     'c_std=gnu99',
-    'warning_level=3',
+    'warning_level=2',
   ],
 )