Removed stripping out code of colons as not required

docker-compose.yml

@@ -5,4 +5,4 @@ services:
     build: .
     container_name: recurring-console
     environment:
-      - CRON_Console:OutputString=NewTestString
+      - CRON_Console__OutputString=NewTestString

export_env.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
 
 echo '#!/bin/bash' > /app/set_env.sh
-printenv | sed '/^affinity:container/ d' | sed -r ':b; s/^([^=]*):/\1__/g; tb;' | sed -r 's/^([a-zA-Z_]+[a-zA-Z0-9_-]*)=(.*)$/export \1="\2"/g' >> /app/set_env.sh
+printenv | sed '/^affinity:container/ d' | sed -r 's/^([a-zA-Z_]+[a-zA-Z0-9_-]*)=(.*)$/export \1="\2"/g' >> /app/set_env.sh
 chmod +x /app/set_env.sh