ci: fix dump of llvm info

Author: bitwalker

.github/workflows/x86_64-apple-darwin-compiler.yml

@@ -47,9 +47,9 @@ jobs:
           tar -xzf "clang+llvm-${LLVM_VERSION}-x86_64-apple-darwin21.0.tar.xz"
           mv "clang+llvm-${LLVM_VERSION}-x86_64-apple-darwin21.0" firefly
           popd
-          echo ~/.local/share/llvm/firefly/bin/llvm-config --cxxflags
-          echo ~/.local/share/llvm/firefly/bin/llvm-config --ldflags
-          echo ~/.local/share/llvm/firefly/bin/llvm-config --host-target
+          echo "$(~/.local/share/llvm/firefly/bin/llvm-config --cxxflags)"
+          echo "$(~/.local/share/llvm/firefly/bin/llvm-config --ldflags)"
+          echo "$(~/.local/share/llvm/firefly/bin/llvm-config --host-target)"
       - name: Set LLVM_PREFIX
         run: echo "LLVM_PREFIX=$HOME/.local/share/llvm/firefly" >> $GITHUB_ENV
       - name: Install Ninja

.github/workflows/x86_64-unknown-linux-gnu-compiler.yml

@@ -37,9 +37,9 @@ jobs:
             echo "$("${LLVM_PREFIX}/bin/llvm-config" --prefix)"
             exit 1
           fi
-          echo "${LLVM_PREFIX}/bin/llvm-config" --cxxflags
-          echo "${LLVM_PREFIX}/bin/llvm-config" --ldflags
-          echo "${LLVM_PREFIX}/bin/llvm-config" --host-target
+          echo "$("${LLVM_PREFIX}/bin/llvm-config" --cxxflags)"
+          echo "$("${LLVM_PREFIX}/bin/llvm-config" --ldflags)"
+          echo "$("${LLVM_PREFIX}/bin/llvm-config" --host-target)"
       - name: Install Rust
         uses: actions-rs/toolchain@v1
         with: