docsite: make the pattern fail when ./rebar doc spits an error
docsite: make the pattern fail when ./rebar doc spits an error

velimir0xff/recon,devDroidhang/recon,JoshuaJiangFD/recon,garazdawi/recon,imdeps/recon,nimishzynga/recon,linearregression/recon,beni55/recon,paulgray/recon,dch/recon