add environment variable to enable global bash debug mode
add environment variable to enable global bash debug mode

vestel/gvm,jmaurice/gvm,markeissler/gvm2,nikolas/gvm,AHaymond/gvm,jmptrader/gvm,markeissler/gvm-test,jbussdieker/gvm,jbussdieker/gvm,runcom/gvm,miguel250/gvm,markeissler/gvm2,jmptrader/gvm,tumf/gvm,miguel250/gvm,vestel/gvm,AHaymond/gvm,jmaurice/gvm,jbussdieker/gvm,nikolas/gvm,nikolas/gvm,kei-yamazaki/gvm,kei-yamazaki/gvm,jmaurice/gvm,jbussdieker/gvm,moovweb/gvm,runcom/gvm,markeissler/gvm2,moovweb/gvm,jmaurice/gvm,runcom/gvm,nikolas/gvm,markeissler/gvm-test,runcom/gvm,ilons/gvm,tumf/gvm,ilons/gvm