Hum, I just saw that all my .goutputstream-* files have exactly 51 bytes. They all are binary files and:
$ file .goutputstream-XXXXXX .goutputstream-XXXXXX: X11 Xauthority data
$ strings .goutputstream-XXXXXX: <my localhostname> MIT-MAGIC-COOKIE-1
Hum, I just saw that all my .goutputstream-* files have exactly 51 bytes.
They all are binary files and:
$ file .goutputstream- XXXXXX XXXXXX: X11 Xauthority data
.goutputstream-
$ strings .goutputstream- XXXXXX:
<my localhostname>
MIT-MAGIC-COOKIE-1