[PATCH 1/2] fix contains_not fdi-directive

[Danny Kukawka]

Hi, 

this patch fixes the contains_not FDI file directive/rule to return true (let 
the match not fail) if the property is not set on the device. This allow to 
have this rule:

       <match key="info.addons" contains_not="hald-addon-input">
         <append key="info.addons" type="strlist">hald-addon-input</append>
       </match>

Without this patch this fails if info.addons is not already set. With the 
change it would match if:
* info.addons is not available
or
* info.addons contains no string 'hald-addon-input'

Danny

 hald/linux/probing/probe-volume.c |   20 +++++++++++++++++---
 libhal/libhal.c                   |    3 +++
 2 files changed, 20 insertions(+), 3 deletions(-)
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