tree ab49a2697885057730a721e69c7a60a5953ffccc
parent 8bd0ba0f150feb485295f8c3890648eddf05fa41
author David Pursehouse <david.pursehouse@gmail.com> 1559973704 +0900
committer David Pursehouse <david.pursehouse@gmail.com> 1560217900 +0900

Config: Add helper method to check for empty value

Rename MAGIC_EMPTY_VALUE to MISSING_ENTRY, make it private, and add
a helper method to check if a given string is that value.

This avoids that callers trigger the "reference equality" warning
from Error Prone.

Change-Id: Idc76f78c0cf1828aa48d02ee33911a4b5df50355
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>