log: fix pattern matching
log: fix pattern matching

loglevel set wrong when ":" is used as separator, like
--log-type="user:debug"

This is because fnmatch returns zero on success. Fixed fnmatch return
value check.

Fixes: 7f0bb634a140 ("log: add ability to match log type with globbing")

Signed-off-by: Ferruh Yigit <ba8734c3c506d2e3557bd4ac8fdaccd25bdb9aa7@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk