Quote shell parameters.

stack/erp5.cfg

@@ -242,7 +242,7 @@ stop-on-error = true
 repository = http://git.erp5.org/repos/erp5.git
 branch = erp5-component
 revision =
-command = ${git:location}/bin/git clone --quiet --branch ${:branch} ${:repository} ${:location} && if [ -n "${:revision}" ]; then cd ${:location} && ${git:location}/bin/git reset --quiet --hard ${:revision} ; fi
+command = "${git:location}/bin/git" clone --quiet --branch "${:branch}" "${:repository}" "${:location}" && if [ -n "${:revision}" ]; then cd "${:location}" && "${git:location}/bin/git" reset --quiet --hard "${:revision}" ; fi
 update-command = cd "${:location}" && "${git:location}/bin/git" fetch && if [ -n "${:revision}" ]; then "${git:location}/bin/git" reset --hard "${:revision}"; else "${git:location}/bin/git" reset --hard @{upstream} ; fi
 
 [products]