Fix Dockerfiles syntax

Author: alessfg

tests/dockerfiles/Dockerfile.debian-jessie

@@ -8,7 +8,7 @@ RUN apt-get update -y && apt-get install -y --no-install-recommends \
     python-dev \
     python-pip \
     git \
-    apt-transport-https
+    apt-transport-https \
  && rm -rf /var/lib/apt/lists/*
 
 RUN pip install --upgrade setuptools && pip install ansible

tests/dockerfiles/Dockerfile.debian-stretch

@@ -9,7 +9,7 @@ RUN apt-get update -y && apt-get install -y --no-install-recommends \
     python-pip \
     git \
     systemd \
-    apt-transport-https
+    apt-transport-https \
  && rm -rf /var/lib/apt/lists/*
 
 RUN pip install --upgrade setuptools && pip install ansible

tests/dockerfiles/Dockerfile.ubuntu-trusty

@@ -5,7 +5,7 @@ RUN apt-get update && apt-get dist-upgrade -y && apt-get install -y software-pro
 RUN apt-add-repository -y ppa:ansible/ansible && apt-get update && apt-get install -y \
     git \
     ansible \
-    apt-transport-https
+    apt-transport-https \
  && rm -rf /var/lib/apt/lists/*
 
 RUN echo "[local]\nlocalhost ansible_connection=local" > /etc/ansible/hosts

tests/dockerfiles/Dockerfile.ubuntu-xenial

@@ -5,7 +5,7 @@ RUN apt-get update && apt-get dist-upgrade -y && apt-get install -y software-pro
 RUN apt-add-repository -y ppa:ansible/ansible && apt-get update && apt-get install -y \
     git \
     ansible \
-    apt-transport-https
+    apt-transport-https \
  && rm -rf /var/lib/apt/lists/*
 
 RUN echo "[local]\nlocalhost ansible_connection=local" > /etc/ansible/hosts