Clean up whitespaces

Author: yahonda

.github/workflows/ruby_head.yml

@@ -47,21 +47,16 @@ jobs:
         uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
-
-      - name: Install system dependencies
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y libaio-dev unzip wget      
       - name: Download Oracle instant client
         run: |
           wget -q https://download.oracle.com/otn_software/linux/instantclient/instantclient-basic-linuxx64.zip
           wget -q https://download.oracle.com/otn_software/linux/instantclient/instantclient-sdk-linuxx64.zip
-          wget -q https://download.oracle.com/otn_software/linux/instantclient/instantclient-sqlplus-linuxx64.zip      
+          wget -q https://download.oracle.com/otn_software/linux/instantclient/instantclient-sqlplus-linuxx64.zip
       - name: Install Oracle instant client
         run: |
           sudo unzip instantclient-basic-linuxx64.zip -d /opt/oracle/
           sudo unzip -o instantclient-sdk-linuxx64.zip -d /opt/oracle/
-          sudo unzip -o instantclient-sqlplus-linuxx64.zip -d /opt/oracle/        
+          sudo unzip -o instantclient-sqlplus-linuxx64.zip -d /opt/oracle/
           ORACLE_HOME=$(find /opt/oracle -name "instantclient_*" -type d | head -1)
           echo "ORACLE_HOME=$ORACLE_HOME" >> $GITHUB_ENV
           echo "LD_LIBRARY_PATH=$ORACLE_HOME" >> $GITHUB_ENV