hg: jdk/client: 8225487: giflib legal file is missing attribution for openbsd-reallocarray.c

[philip.race at oracle.com]

Changeset: 9cb499911646
Author:    prr
Date:      2019-06-11 17:15 -0700
URL:       http://hg.openjdk.java.net/jdk/client/rev/9cb499911646

8225487: giflib legal file is missing attribution for openbsd-reallocarray.c
Reviewed-by: serb, kcr

! src/java.desktop/share/legal/giflib.md