load_limits split a config list on ',' and kept the spaces, so 'list=cpu, mem,
load' became ['cpu', ' mem', ' load']. glances.conf writes lists that way in its
own comments, so following the shipped documentation produced a config that did
not work.
The loudest symptom is show/hide: every item is used as a re.fullmatch pattern,
and a leading space makes the pattern match nothing. 'hide=sda2, loop.*' hid
sda2 and silently kept showing every loop device.
Quicklook also answered a bad list by falling back to AVAILABLE_STATS_LIST -
more than the user asked for, and its two GPU entries flip the gpu_stats polling
flags, so a typo started polling the GPU. It now falls back to the documented
DEFAULT_STATS_LIST and names the offending entries in the warning.