[geary] Fix build warning.

[Michael Gratton <mjog src gnome org>]

commit b08cee788398f7ca6bd794ad93927794d05db082
Author: Michael Gratton <mike vee net>
Date:   Sat Dec 21 18:31:03 2019 +1100

    Fix build warning.

 test/engine/rfc822-mailbox-address-test.vala | 38 +++++++++++++---------------
 1 file changed, 17 insertions(+), 21 deletions(-)
---
diff --git a/test/engine/rfc822-mailbox-address-test.vala b/test/engine/rfc822-mailbox-address-test.vala
index 714da286..6b47a81f 100644
--- a/test/engine/rfc822-mailbox-address-test.vala
+++ b/test/engine/rfc822-mailbox-address-test.vala
@@ -153,27 +153,23 @@ class Geary.RFC822.MailboxAddressTest : TestCase {
         }
     }
 
-    public void prepare_header_text_part() throws Error {
-        try {
-            // Test if prepare_header_text_part() can handle crappy input without grilling the CPU
-            MailboxAddress addr = new MailboxAddress.imap(
-                
"=?UTF-8?Q?=22Firstname_=22=C2=AF\\=5F=28=E3=83=84=29=5F/=C2=AF=22_Lastname_via?==?UTF-8?Q?_Vendor=22_<system 
vendor com>?=",
-                null,
-                
"=?UTF-8?Q?=22Firstname_=22=C2=AF\\=5F=28=E3=83=84=29=5F/=C2=AF=22_Lastname_via?==?UTF-8?Q?_Vendor=22_<system 
vendor com>?=",
-                "vendor.com");
-            assert(addr.name == "\"Firstname \"¯_(ツ)_/¯\" Lastname via Vendor\" <system vendor com>");
-            assert(addr.mailbox == "\"Firstname \"¯_(ツ)_/¯\" Lastname via Vendor\" <system vendor com>");
-
-            // A second test with the input that have been passed to prepare_header_text_part() by the 
pre-GMime3 tests
-            addr = new MailboxAddress.imap(
-                "\"Firstname \"¯_(ツ)_/¯\" Lastname via=?UTF-8?Q?_Vendor=22_",
-                null,
-                "system",
-                "vendor.com");
-            assert(addr.name == "Firstname ¯_(ツ)_/¯ Lastname via=?UTF-8?Q?_Vendor=22_");
-        } catch (Error err) {
-            assert_not_reached();
-        }
+    public void prepare_header_text_part() throws GLib.Error {
+        // Test if prepare_header_text_part() can handle crappy input without grilling the CPU
+        MailboxAddress addr = new MailboxAddress.imap(
+            
"=?UTF-8?Q?=22Firstname_=22=C2=AF\\=5F=28=E3=83=84=29=5F/=C2=AF=22_Lastname_via?==?UTF-8?Q?_Vendor=22_<system 
vendor com>?=",
+            null,
+            
"=?UTF-8?Q?=22Firstname_=22=C2=AF\\=5F=28=E3=83=84=29=5F/=C2=AF=22_Lastname_via?==?UTF-8?Q?_Vendor=22_<system 
vendor com>?=",
+            "vendor.com");
+        assert(addr.name == "\"Firstname \"¯_(ツ)_/¯\" Lastname via Vendor\" <system vendor com>");
+        assert(addr.mailbox == "\"Firstname \"¯_(ツ)_/¯\" Lastname via Vendor\" <system vendor com>");
+
+        // A second test with the input that have been passed to prepare_header_text_part() by the 
pre-GMime3 tests
+        addr = new MailboxAddress.imap(
+            "\"Firstname \"¯_(ツ)_/¯\" Lastname via=?UTF-8?Q?_Vendor=22_",
+            null,
+            "system",
+            "vendor.com");
+        assert(addr.name == "Firstname ¯_(ツ)_/¯ Lastname via=?UTF-8?Q?_Vendor=22_");
     }
 
     public void has_distinct_name() throws Error {