cmake(ci): cleanup

cmake/Makefile

@@ -77,6 +77,7 @@ help:
 	@echo -e "\t\t${BOLD}dotnet${RESET} (.Net Core >= 2.1)"
 	@echo
 	@echo -e "\te.g. 'make ubuntu_base'"
+	@echo -e "\te.g. 'make alpine_cpp_build'"
 	@echo -e "\te.g. 'make archlinux_cpp_build'"
 	@echo
 	@echo -e "\t${BOLD}<vm>${RESET}: build <vm> vagrant machine for ALL LANGUAGES."

cmake/docker/opensuse/Dockerfile

@@ -7,6 +7,7 @@ RUN zypper refresh \
 && zypper install -y git gcc gcc-c++ cmake \
 && zypper clean -a
 ENV CC=gcc CXX=g++
+ENTRYPOINT ["/usr/bin/bash", "-c"]
 CMD [ "/usr/bin/bash" ]
 
 FROM base AS swig