[geary/wip/fix-not-prompting-for-missing-password: 3/5] Minor API doc update

[Michael Gratton <mjog src gnome org>]

commit 7e868dd06bbc7ec3f6dd9cfb66296c20d1087b48
Author: Michael Gratton <mike vee net>
Date:   Thu Feb 21 14:26:51 2019 +1100

    Minor API doc update

 src/engine/api/geary-credentials.vala | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/engine/api/geary-credentials.vala b/src/engine/api/geary-credentials.vala
index e1b58cf9..f44ad146 100644
--- a/src/engine/api/geary-credentials.vala
+++ b/src/engine/api/geary-credentials.vala
@@ -107,6 +107,7 @@ public class Geary.Credentials : BaseObject, Gee.Hashable<Geary.Credentials> {
         this.token = token;
     }
 
+    /** Determines if a token has been provided. */
     public bool is_complete() {
         return this.token != null;
     }