LOCAL_APPS_EXTRAMOUNTS fails in X01-localapps

In the X01-localapps script, there's a subtle bug that combines variable expansion and bash's IFS variable.

On line 182, If true (or unset), the variable SSH_FOLLOW_SYMLINKS is re-set to the value "follow_symlinks,". This works fine for line 187 where the user's /home is mounted. But inside the loop for LOCAL_APP_EXTRAMOUNTS, bash's internal field separator variable IFS is set to ',' to deal with the comma separated entry in lts.conf. This means that *unquoted* references to $SSH_FOLLOW_SYMLINKS treat the comma as a special character, and it is stripped from the expansion. This makes the sshfs command on line 195 fail each time the loop, as the -o parameter looks like follow_symlinksallow_other,ControlPath=... instead of follow_symlinks,allow_other,ControlPath=...

A patch is attached that fixes this.

If ${SSH_FOLLOW_SYMLINKS} is quoted instead in line 195, it behaves as expected. The attached patch quotes the set of parameters that go with -o. Line 187 doesn't need to be quoted because IFS isn't set to comma at that point, but if there's a readability reason to quote them both, that seems reasonable.

This looks like it's been broken upstream since around October.