diff --git a/src/logs.js b/src/logs.js
index 05d62701f..d126b34bb 100644
--- a/src/logs.js
+++ b/src/logs.js
@@ -71,11 +71,12 @@ function journalctl(unit, options) {
     assert.strictEqual(typeof unit, 'string');
     assert.strictEqual(typeof options, 'object');
 
-    const args = [];
-    args.push('--lines=' + (options.lines === -1 ? 'all' : options.lines));
-    args.push(`--unit=${unit}`);
-    args.push('--no-pager');
-    args.push('--output=short-iso');
+    const args = [
+        '--lines=' + (options.lines === -1 ? 'all' : options.lines),
+        `--unit=${unit}`,
+        '--no-pager',
+        '--output=short-iso'
+    ];
 
     if (options.follow) args.push('--follow');
 
diff --git a/src/shell.js b/src/shell.js
index db27f0621..5609bd880 100644
--- a/src/shell.js
+++ b/src/shell.js
@@ -20,7 +20,7 @@ exports = module.exports = {
 
 const SUDO = '/usr/bin/sudo';
 
-// default encoding utf8, no shell, separate args
+// default encoding utf8, no shell, separate args, wait for process to finish
 async function execArgs(tag, file, args, options) {
     assert.strictEqual(typeof tag, 'string');
     assert.strictEqual(typeof file, 'string');
@@ -50,7 +50,7 @@ async function execArgs(tag, file, args, options) {
     });
 }
 
-// default encoding utf8, no shell, handles input, full command
+// default encoding utf8, no shell, handles input, full command, wait for process to finish
 async function exec(tag, cmd, options) {
     assert.strictEqual(typeof tag, 'string');
     assert.strictEqual(typeof cmd, 'string');