Avoid turning path into strings when not needed

src/steps/emacs.rs

@@ -43,7 +43,9 @@ impl Emacs {
 
         run_type
             .execute(&emacs)
-            .args(&["--batch", "-l", init_file.to_str().unwrap(), "--eval", EMACS_UPGRADE])
+            .args(&["--batch", "-l"])
+            .arg(init_file)
+            .args(&["--eval", EMACS_UPGRADE])
             .check_run()
     }
 }

src/steps/os/linux.rs

@@ -297,10 +297,7 @@ pub fn run_snap(sudo: Option<&PathBuf>, run_type: RunType) -> Result<(), Error>
     }
     print_separator("snap");
 
-    run_type
-        .execute(sudo)
-        .args(&[snap.to_str().unwrap(), "refresh"])
-        .check_run()
+    run_type.execute(sudo).arg(snap).arg("refresh").check_run()
 }
 
 #[must_use]
@@ -309,7 +306,7 @@ pub fn run_etc_update(sudo: Option<&PathBuf>, run_type: RunType) -> Result<(), E
     let etc_update = require("etc_update")?;
     print_separator("etc-update");
 
-    run_type.execute(sudo).arg(&etc_update.to_str().unwrap()).check_run()
+    run_type.execute(sudo).arg(etc_update).check_run()
 }
 
 #[cfg(test)]

src/steps/vim.rs

@@ -61,10 +61,9 @@ fn nvimrc(base_dirs: &BaseDirs) -> Option<PathBuf> {
 fn upgrade(vim: &PathBuf, vimrc: &PathBuf, plugin_framework: PluginFramework, run_type: RunType) -> Result<(), Error> {
     run_type
         .execute(&vim)
+        .args(&["-N", "-u"])
+        .arg(vimrc)
         .args(&[
-            "-N",
-            "-u",
-            vimrc.to_str().unwrap(),
             "-c",
             plugin_framework.upgrade_command(),
             "-c",