Fix for gogadget's memleak

[ms-xy]

Note: It still seems to very slowly accumulate certain artifacts in memory. Most notably it accumulates buffers from encoding/json and slices from strings.Split(). We will have to try it at a larger scale to see if those get freed eventually or not. (I think they do, as objdump has similar problems with encoding/json and appears to be fine at large scale)

[cynexit]

Please create an issue so we don't forget to check on this later on so we can at some point remove the debug dependency.