build.yml: The PowerShell line continuation character is the BACKTICK?!

.github/workflows/build.yml

@@ -140,13 +140,13 @@ jobs:
           cd ~
           git clone --depth=1 https://github.com/abseil/abseil-cpp.git -b ${{ env.ABSEIL_VERSION }} abseil
           cd ~/abseil
-          cmake -B build -G "NMake Makefiles" \
-            -DCMAKE_CXX_STANDARD=17 \
-            -DCMAKE_INSTALL_PREFIX=~/abseil-bin \
-            -DCMAKE_BUILD_TYPE=${{ matrix.build-type }} \
-            -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded${{ matrix.build-type == 'Debug' && 'Debug' || '' }}${{ matrix.shared-lib == 'ON' && 'DLL' || '' }} \
-            -DABSL_PROPAGATE_CXX_STD=ON \
-            -DBUILD_SHARED_LIBS=${{ matrix.shared-lib }} \
+          cmake -B build -G "NMake Makefiles" `
+            -DCMAKE_CXX_STANDARD=17 `
+            -DCMAKE_INSTALL_PREFIX=~/abseil-bin `
+            -DCMAKE_BUILD_TYPE=${{ matrix.build-type }} `
+            -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded${{ matrix.build-type == 'Debug' && 'Debug' || '' }}${{ matrix.shared-lib == 'ON' && 'DLL' || '' }} `
+            -DABSL_PROPAGATE_CXX_STD=ON `
+            -DBUILD_SHARED_LIBS=${{ matrix.shared-lib }} `
           ;
           cmake --build "build" -j4
           cmake --build "build" --target install
@@ -155,29 +155,29 @@ jobs:
           cd ~
           git clone --depth=1 https://github.com/protocolbuffers/protobuf.git -b ${{ env.PROTOBUF_VERSION }} protobuf
           cd ~/protobuf
-          cmake -B build -G "NMake Makefiles" \
-            -DCMAKE_CXX_STANDARD=17 \
-            -DCMAKE_INSTALL_PREFIX=~/protobuf-bin \
-            -DCMAKE_BUILD_TYPE=${{ matrix.build-type }} \
-            -DABSL_PROPAGATE_CXX_STD=ON \
-            -Dabsl_ROOT=~/abseil-bin \
-            -Dprotobuf_ABSL_PROVIDER=package \
-            -Dprotobuf_BUILD_EXAMPLES=OFF \
-            -Dprotobuf_BUILD_LIBUPB=OFF \
-            -Dprotobuf_BUILD_SHARED_LIBS=${{ matrix.shared-lib }} \
-            -Dprotobuf_BUILD_TESTS=OFF \
+          cmake -B build -G "NMake Makefiles" `
+            -DCMAKE_CXX_STANDARD=17 `
+            -DCMAKE_INSTALL_PREFIX=~/protobuf-bin `
+            -DCMAKE_BUILD_TYPE=${{ matrix.build-type }} `
+            -DABSL_PROPAGATE_CXX_STD=ON `
+            -Dabsl_ROOT=~/abseil-bin `
+            -Dprotobuf_ABSL_PROVIDER=package `
+            -Dprotobuf_BUILD_EXAMPLES=OFF `
+            -Dprotobuf_BUILD_LIBUPB=OFF `
+            -Dprotobuf_BUILD_SHARED_LIBS=${{ matrix.shared-lib }} `
+            -Dprotobuf_BUILD_TESTS=OFF `
           ;
           cmake --build "build" -j4
           cmake --build "build" --target install
       - name: Run cmake tests
         run: |
-          cmake -B build -G "NMake Makefiles" \
-            -DCMAKE_INSTALL_PREFIX=~/protobuf-c-bin \
-            -DCMAKE_BUILD_TYPE=${{ matrix.build-type }} \
-            -DBUILD_TESTS=ON \
-            -DBUILD_SHARED_LIBS=${{ matrix.shared-lib }} \
-            -DProtobuf_ROOT="~/protobuf-bin" \
-            -Dabsl_ROOT="~/abseil-bin" \
+          cmake -B build -G "NMake Makefiles" `
+            -DCMAKE_INSTALL_PREFIX=~/protobuf-c-bin `
+            -DCMAKE_BUILD_TYPE=${{ matrix.build-type }} `
+            -DBUILD_TESTS=ON `
+            -DBUILD_SHARED_LIBS=${{ matrix.shared-lib }} `
+            -DProtobuf_ROOT="~/protobuf-bin" `
+            -Dabsl_ROOT="~/abseil-bin" `
           ;
           cmake --build "build" -j3
           cmake --build "build" --target test