Fix "Run tests on macOS 10.15 and 11.0"

... and don't log sw_vers as it's already logged by the setup action

Author: tofi86

.github/workflows/test.yml

@@ -3,20 +3,20 @@ name: Tests and Shellcheck
 # Trigger the workflow on push or pull request
 on: [push, pull_request]
 
+  
 
 jobs:
 
   tests:
-    name: Run bash function tests
-    runs-on: [ macos-10.15, macos-11.0 ]
+    name: Run bash function tests on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ macos-10.15, macos-11.0 ]
 
     steps:
     - uses: actions/checkout@v2
 
-    - name: Log Mac OS version information
-      run: |
-        sw_vers
-
     # Run the 'java-version-tester' script and show&save (`tee`) the output to a
     # logfile; then grep the logfile for 'FAILED' entries which would cause grep
     # to exit with 0; then run 'test' command and swap the grep exit code
@@ -30,16 +30,15 @@ jobs:
 
 
   shellcheck:
-    name: Check bash syntax with shellcheck
-    runs-on: macos-latest
+    name: Check bash syntax with shellcheck on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ macos-10.15, macos-11.0 ]
 
     steps:
     - uses: actions/checkout@v2
 
-    - name: Log Mac OS version information
-      run: |
-        sw_vers
-
     - name: Install shellcheck via HomeBrew
       run: |
         brew install shellcheck