Fix warning message when /vsi is on nfs

Signed-off-by: Andy Neff <andy@visionsystemsinc.com>

linux/just_files/just_entrypoint.sh

@@ -88,6 +88,15 @@ set -eu
 : ${VSI_COMMON_DIR=/vsi}
 : ${DOCKER_USERNAME=user}
 
+# In the case where docker_link_mounts causes /src and /vsi to be replaces with
+# symlinks, /vsi is needed for the initial entrypoint, but is replaces mid way
+# through. Which this is not really an issue, the pwd of the PID becomes stale
+# and warnings pop up:
+# shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
+# chdir: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
+# Making sure we are in / prevents this issue altogether
+cd /
+
 source "${VSI_COMMON_DIR}/linux/elements.bsh"
 
 #**