Select pub key when email could not be found

OpenPGP-Keychain/res/values/strings.xml

@@ -329,12 +329,12 @@
     <string name="key_size_1024">1024</string>
     <string name="key_size_2048">2048</string>
     <string name="key_size_4096">4096</string>
-    
+
     <!-- misc -->
     <string name="fast">fast</string>
     <string name="slow">slow</string>
     <string name="very_slow">very slow</string>
-	
+
     <!-- APG 2.0 -->
 
 
@@ -377,5 +377,6 @@
     <string name="api_register_allow">Allow access</string>
     <string name="api_register_disallow">Disallow access</string>
     <string name="api_register_error_select_key">Please select a key!</string>
-    
-</resources>
+    <string name="api_select_pub_keys_text">You have selected recipients (e.g. by selecting email addresses), which public keys could not be found. Please verify your selection!</string>
+
+</resources>