Fixed NPE in master build.#140

rhierlmeier wants to merge 1 commit intoe-gineering:developmente-gineering/gitflow-helper-maven-plugin:developmentfrom

DEsoftware:npe-in-promote-master-with-proxiesDEsoftware/gitflow-helper-maven-plugin:npe-in-promote-master-with-proxiesCopy head branch name to clipboard