clean up minor items

src/cmd.rs

@@ -1,12 +1,12 @@
 use std::path::PathBuf;
 use std::process::{Command, ExitStatus};
 
-use anyhow::{anyhow, Result};
+use anyhow::{anyhow, Context, Result};
 
 use crate::env::get_editor;
 
 pub fn run_edit_command(files: &[PathBuf]) -> Result<ExitStatus> {
-    let mut cmd = Command::new(get_editor()?);
+    let mut cmd = Command::new(get_editor().context("getting suitable editor")?);
     cmd.current_dir(files[0].parent().unwrap());
     for f in files {
         cmd.arg(f.to_string_lossy().to_string());