we walk up the chain of physical devices to find a match.
The KEY="<value>" format supports '=', '==', '!=,' , '+=' now. This makes it
-easier to skip certain devices without composing rules with weird character
-class negations like:
+easy to skip certain attribute matches without composing rules with weird
+character class negations like:
KERNEL="[!s][!c][!d]*"
-this can be replaced by:
+this can now be replaced with:
KERNEL!="scd*"
-The simple '=' is still supported, but the rules should be converted if
-possible, to be better human-readable.
+The current simple '=' is still supported, and should work as it does today,
+but existing rules should be converted if possible, to be better readable.
+