tree e7a48960086d51510e28bafddc017c6298f7ea17
parent 8236dfe0157ec8467a2bd560fe2e0be4e0b95bb2
author David Pursehouse <dpursehouse@collab.net> 1516674639 +0900
committer David Pursehouse <dpursehouse@collab.net> 1516749414 +0900

MarkdownToHtml#parse: Annotate lang parameter as @Nullable

The lang parameter may be null, but dereferencing it is
protected by a call to Strings.isNullOrEmpty.

Change-Id: Iab12d6c202fd179043932d1d382f83d0ef1d2397