The bug talks about /usr/src/iguanair/software/lirc-drv-iguanair/iguanair.c which is part of the igaunair software, not lirc. This is not something we maintain: https://github.com/iguanaworks/iguanair/blob/master/software/lirc-drv-iguanair/iguanair.c Having said that I don't really follow what the problem is. I cannot find log level in that file.
lib: irrecord: Fix free memory write
Please don't use the debian or ubuntu branch, they are out of date. Just use the master branch and report any issues you have on that branch.
xmode2: Incorrect unit for -t option.
xmode2: No IR data shown after wrap.
xmode2: Error message "?: too many arguments".
xmode2: Incorrect unit for -t option.
xmode2: Show correct unit for -t option.