ddb activate error with permissions specs containing slash

[Toilal]

With such configuration

permissions:
  specs:
    "bin/dependency-check": "+x"
    "bin/sonar-scanner": "+x"

ddb activation still raise some errors in bash.

bash: export: « DDB_PERMISSIONS_SPECS_BIN-DEPENDENCY_CHECK=+x » : identifiant non valable
bash: export: « DDB_PERMISSIONS_SPECS_BIN-SONAR_SCANNER=+x » : identifiant non valable

This is caused by the - dash.