[gtk+] quartz: Fix typo that broke debug builds

[Emmanuele Bassi <ebassi src gnome org>]

commit 74bd3f3810133d44f333aa5f8d02ae3de19a6834
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Mon Aug 22 09:23:02 2016 +0100

    quartz: Fix typo that broke debug builds

 gdk/quartz/gdkeventloop-quartz.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gdk/quartz/gdkeventloop-quartz.c b/gdk/quartz/gdkeventloop-quartz.c
index e345aec..c205639 100644
--- a/gdk/quartz/gdkeventloop-quartz.c
+++ b/gdk/quartz/gdkeventloop-quartz.c
@@ -353,7 +353,7 @@ dump_poll_result (GPollFD *ufds,
          if (ufds[i].revents & G_IO_IN)
             g_string_append (s, " in");
          if (ufds[i].revents & G_IO_OUT)
-           g_string_appendi (s, " out");
+           g_string_append (s, " out");
          if (ufds[i].revents & G_IO_PRI)
            g_string_append (s, " pri");
          g_string_append (s, "\n");