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diff --git a/Cargo.lock b/Cargo.lock
index b35d4dd..5a25d2a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -74,6 +74,7 @@ dependencies = [
"daemonize",
"getopts",
"glob",
+ "is_none_or",
"libc",
"log",
"simplelog",
@@ -91,6 +92,12 @@ dependencies = [
"hashbrown",
]
+[[package]]
+name = "is_none_or"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "51348eca70aa22f39a6b5cba003772e3f5ab364a43ae2831a44fbb76ae182334"
+
[[package]]
name = "itoa"
version = "1.0.11"
diff --git a/Cargo.toml b/Cargo.toml
index 4b4ea6a..74365a4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,3 +14,4 @@ getopts = "0.2"
toml="0.8"
glob = "0.3"
libc = "0.2"
+is_none_or = "0.1.0"
diff --git a/src/config.rs b/src/config.rs
index b6c8768..260e54c 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,5 +1,6 @@
use crate::ErrorCode;
use crate::LightPoint;
+use is_none_or::IsNoneOr;
use log::LevelFilter;
use std::str::FromStr;
|