fix cleanup

Dockerfile

@@ -5,18 +5,20 @@ LABEL maintainer="Julien Cabillot <dockerimages@cabillot.eu>"
 # Nécessaire pour le git clone plus loin
 WORKDIR "/var/www"
 
-RUN apt-get update && \
-    apt-get -y install libpng12-dev git && \
+RUN apt-get -qq update && \
+    apt-get -qq --yes install libpng12-dev git && \
     docker-php-ext-install gd && \
-    apt-get clean all && \
     rmdir "/var/www/html" && \
     git clone "https://github.com/blueimp/jQuery-File-Upload.git" "/var/www/html" && \
-    apt-get -y autoremove --purge git libpng12-dev && \
-    apt-get -y clean all && \
-    rm -rf "/usr/share/doc/*" \
-       "/var/cache/*" \
-       "/var/lib/apt/lists/*" \
-       "/usr/src/*" \
-       "/var/cache/*" \
+    apt-get -qq --yes remove --purge libpng12-dev && \
+    apt-get -qq --yes autoremove --purge && \
+    apt-get -qq --yes clean all && \
+    rm -rf "/usr/share/doc/"* \
+           "/var/cache/"* \
+           "/var/lib/apt/lists/"* \
+           "/usr/src/"* \
+           "/var/cache/"* \
        "/var/log/"{apt/*,dpkg.log} \
-       "/tmp/*"
+           "/var/www/html" \
+           "/tmp/"*
+