multipath-tools: Fix uevent handling code
multipath-tools: Fix uevent handling code

Multipathd wasn't setting buflen when it read in a uevent message.  This was
causing buflen to be used unitialized, and would often keep multipathd from
processing uevents.  This patch correctly initializes buflen to the size of the
buffer received.

Signed-off-by: Benjamin Marzinski <6b0cc3f70b3cc4298c6f98f9a6292b5ebe631572@redhat.com>

vijaychauhan/multipath-tools,vijaychauhan/multipath-tools,unakatsuo/multipath-tools,unakatsuo/multipath-tools,unakatsuo/multipath-tools,gebi/multipath-tools,grzn/multipath-tools-explained,grzn/multipath-tools-explained