Moving formatting to a new GH action.

.github/workflows/ci_formatting.yml

@@ -0,0 +1,22 @@
+name: ci_formatting
+
+on: [push, pull_request]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: updating available system dependencies
+      run: sudo apt-get update
+    - name: installing system dependencies
+      run: sudo apt-get install -y build-essential pkg-config automake clang-format-5.0
+    - name: creating autoconf files
+      run: ./init.sh
+    - name: configuring
+      run: ./configure CFLAGS='-O0 -g -Wall -Wextra'
+    # Changing the path should no longer be necessary when clang-format6 is installed.
+    - name: verifying code style
+      run: export PATH=$PATH:/usr/lib/llvm-5.0/bin && make check-format

.github/workflows/ci_ubuntu_16.04.yml

@@ -12,13 +12,10 @@ jobs:
     - name: updating available system dependencies
       run: sudo apt-get update
     - name: installing system dependencies
-      run: sudo apt-get install -y build-essential pkg-config automake libncurses5-dev autotools-dev libparted-dev dmidecode clang-format-5.0
+      run: sudo apt-get install -y build-essential pkg-config automake libncurses5-dev autotools-dev libparted-dev dmidecode
     - name: creating autoconf files
       run: ./init.sh
     - name: configuring
       run: ./configure CFLAGS='-O0 -g -Wall -Wextra'
     - name: compiling
       run: make
-    # Changing the path should no longer be necessary when clang-format6 is installed.
-    - name: verifying code style
-      run: export PATH=$PATH:/usr/lib/llvm-5.0/bin && make check-format

.github/workflows/ci_ubuntu_latest.yml

@@ -12,13 +12,10 @@ jobs:
     - name: updating available system dependencies
       run: sudo apt-get update
     - name: installing system dependencies
-      run: sudo apt-get install -y build-essential pkg-config automake libncurses5-dev autotools-dev libparted-dev dmidecode clang-format-5.0
+      run: sudo apt-get install -y build-essential pkg-config automake libncurses5-dev autotools-dev libparted-dev dmidecode
     - name: creating autoconf files
       run: ./init.sh
     - name: configuring
       run: ./configure CFLAGS='-O0 -g -Wall -Wextra'
     - name: compiling
       run: make
-    # Changing the path should no longer be necessary when clang-format6 is installed.
-    - name: verifying code style
-      run: export PATH=$PATH:/usr/lib/llvm-5.0/bin && make check-format