Config inspection: Break out split()

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/src/config.rs b/src/config.rs
index 8960433f30c0e30544f7ff78896a0b6f3c996517..ce63ce10d26deaa154431180f74b18bd2fcc9eb6 100644 (file)
--- a/src/config.rs
+++ b/src/config.rs
@@ -135,13 +135,14 @@ impl PrintConfigOpt<'_> {
     }
   }
 
+  fn split(arg: &str) -> impl Iterator<Item=&str> { arg.split(',') }
+
   #[throws(AE)]
   fn print_one_config(
     arg: &str,
     config: &dyn InspectableConfig,
   ) {
-    let output = arg
-      .split(',')
+    let output = Self::split(arg)
       .map(|key| {
         if key == "pretty" {
           return Ok(format!("{:#?}", &config));