Handle env variables correctly

Author: eamonnsullivan

.circleci/config.yml

@@ -63,9 +63,10 @@ commands:
           name: extract version from pom
           command: |
             echo 'export CURRENT_VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)' >> $BASH_ENV
+            echo 'Creating release v{CURRENT_VERSION}'
             source $BASH_ENV
       - github-release/create:
-          tag: "v$CURRENT_VERSION"
+          tag: "v{$CURRENT_VERSION}"
           title: "Version v${CURRENT_VERSION}"
           description: "Github-related API calls."
           file-path: ~/repos/github-api-lib.zip