No longer unintentionally trying to execute a string in back-ticks when printing an error.
(https://github.com/bitrise-steplib/steps-fabric-crashlytics-beta-deploy/issues/32)
Example error message:
Submitting DSYM...
/var/folders/6q/XXXX/step_src/step.sh: line 171: GoogleService-Info.plist: command not found
/var/folders/6q/XXXX/step_src/step.sh: line 171: Fabric:: command not found
Thanks @pabdavis !