Check microphone permissions: Clean up

* copy tweaks
* use "settings" instead of "privacy settings" for button text
* include comments in NSLocalizedString param so they can be extracted with genstrings
* style dismiss action as "cancel"

// FREEBIE

Signal/src/call/OutboundCallInitiator.swift

@@ -46,7 +46,6 @@ import Foundation
             return false
         }
 
-        
         // Check for microphone permissions
         // Alternative way without prompting for permissions:
         // if AVAudioSession.sharedInstance().recordPermission() == .denied {
@@ -64,12 +63,12 @@ import Foundation
 
     /// Cleanup and present alert for no permissions
     private func showNoMicrophonePermissionAlert() {
-        let alertTitle = NSLocalizedString("CALL_AUDIO_PERMISSION_TITLE", comment:"Alert Title")
+        let alertTitle = NSLocalizedString("CALL_AUDIO_PERMISSION_TITLE", comment:"Alert title when calling and permissions for microphone are missing")
-        let alertMessage = NSLocalizedString("CALL_AUDIO_PERMISSION_MESSAGE", comment:"Alert message")
+        let alertMessage = NSLocalizedString("CALL_AUDIO_PERMISSION_MESSAGE", comment:"Alert message when calling and permissions for microphone are missing")
         let alertController = UIAlertController(title: alertTitle, message: alertMessage, preferredStyle: .alert)
         let dismiss = NSLocalizedString("DISMISS_BUTTON_TEXT", comment: "Generic short text for button to dismiss a dialog")
-        let dismissAction = UIAlertAction(title: dismiss, style: .default)
+        let dismissAction = UIAlertAction(title: dismiss, style: .cancel)
-        let settingsString = NSLocalizedString("CALL_VIEW_SETTINGS_NAG_SHOW_CALL_SETTINGS", comment: "Settings button text")
+        let settingsString = NSLocalizedString("OPEN_SETTINGS_BUTTON", comment: "Button text which opens the settings app")
         let settingsAction = UIAlertAction(title: settingsString, style: .default) { _ in
             UIApplication.shared.openURL(URL(string: UIApplicationOpenSettingsURLString)!)
         }

Signal/translations/en.lproj/Localizable.strings

@@ -160,11 +160,11 @@
 /* Title format for action sheet that offers to block an unknown user.Embeds {{the unknown user's name or phone number}}. */
 "BLOCK_OFFER_ACTIONSHEET_TITLE_FORMAT" = "Block %@?";
 
-/* Alert message */
+/* Alert message when calling and permissions for microphone are missing */
-"CALL_AUDIO_PERMISSION_MESSAGE" = "Signal requires access to your microphone to make calls. You can grant this permission in the Settings app";
+"CALL_AUDIO_PERMISSION_MESSAGE" = "Signal requires access to your microphone to make calls. You can grant this permission in the Settings app.";
 
-/* Alert Title */
+/* Alert title when calling and permissions for microphone are missing */
-"CALL_AUDIO_PERMISSION_TITLE" = "Call failed";
+"CALL_AUDIO_PERMISSION_TITLE" = "Microphone Access Required";
 
 /* Accessibilty label for placing call button */
 "CALL_LABEL" = "Call";
@@ -184,8 +184,7 @@
 /* Label for button that dismiss the call view's settings nag. */
 "CALL_VIEW_SETTINGS_NAG_NOT_NOW_BUTTON" = "Not Now";
 
-/* Label for button that shows the privacy settings
+/* Label for button that shows the privacy settings */
-   Settings button text */
 "CALL_VIEW_SETTINGS_NAG_SHOW_CALL_SETTINGS" = "Show Privacy Settings";
 
 /* notification action */