fix cleanup

Dockerfile

@@ -8,14 +8,15 @@ RUN apt-get -qq update && \
     apt-get -qq --yes remove --purge git-core && \
     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/*" \
+    rm -rf "/usr/share/doc/"* \
+           "/var/cache/"* \
+           "/var/lib/apt/lists/"* \
+           "/usr/src/"* \
+           "/var/cache/"* \
            "/var/log/"{apt/*,dpkg.log} \
            "/var/www/html" \
-           "/tmp/*"
+           "/tmp/"*
+
 
 WORKDIR /cipherscan