Aperture: Add missing comma

Change-Id: I81f641d4d89f16baed014aabf405261f5b350e1c
diff --git a/app/src/main/java/org/lineageos/aperture/MainActivity.kt b/app/src/main/java/org/lineageos/aperture/MainActivity.kt
index dfcb6aa..67ee242 100644
--- a/app/src/main/java/org/lineageos/aperture/MainActivity.kt
+++ b/app/src/main/java/org/lineageos/aperture/MainActivity.kt
@@ -940,7 +940,7 @@
 
     private fun openGallery() {
         sharedPreferences.lastSavedUri.let { uri ->
-            // If the Uri is null attempt to launch non secure-gallery
+            // If the Uri is null, attempt to launch non secure-gallery
             if (uri == null) {
                 dismissKeyguardAndRun {
                     val intent = Intent().apply {