bigger-file-stream-buffers

 2169  git co master
 2170  choose-dylan 2019.1
 2171  make distclean
 2172  ./autogen.sh
 2173  ./configure --prefix=${DYLAN}/opendylan-master
 2174  time make

real    21m20.151s
user    27m9.866s
sys     1m11.744s

Same but with the buffer size increased in the initial bootstrap
compiler. i.e., the buffer size change was in effect for all 3 stages:

real    17m37.680s
user    22m22.271s
sys     1m6.339s