Carlos O'Donell 99de869beb Use 2020 as copyright year. ...

Use the year 2020 for files added by commit:
92954ffa5a

2020-04-27 10:34:52 -04:00

..

xasprintf.h

Use 2020 as copyright year.

2020-04-27 10:34:52 -04:00

xmalloc.h

Update copyright dates with scripts/update-copyrights.

2020-01-01 00:14:33 +00:00