build.yaml: Don’t use flow style YAML

diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 5c314b554dd33fecd01c56339be693c3e4c28c7f..9177cda919ec66ec5e03defad224149fdad80185 100644 (file)
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -13,8 +13,10 @@ jobs:
       matrix:
         os: [ubuntu-16.04, ubuntu-18.04, ubuntu-20.04, macos-10.15]
         compiler:
-          - { CC: gcc, CXX: g++ }
-          - { CC: clang, CXX: clang++ }
+          - CC: gcc
+            CXX: g++
+          - CC: clang
+            CXX: clang++
 
     steps:
       - name: Get source