[glibmm] Fix documentation of enum Glib::IOCondition

[Kjell Ahlstedt <kjellahl src gnome org>]

commit 6c4124a36e7863b86d42db7c5034af9c1fb77483
Author: Kjell Ahlstedt <kjellahlstedt gmail com>
Date:   Mon Jun 12 15:44:51 2017 +0200

    Fix documentation of enum Glib::IOCondition
    
    * glib/src/iochannel.hg: The code snippet needs a fix when IOCondition is
    a scoped enum (enum class). Doxygen needs "@enum IOCondition" before the
    extra documentation.

 glib/src/iochannel.hg |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/glib/src/iochannel.hg b/glib/src/iochannel.hg
index 63b0c54..7a3ade1 100644
--- a/glib/src/iochannel.hg
+++ b/glib/src/iochannel.hg
@@ -18,7 +18,7 @@
 _DEFS(glibmm,glib)
 
 #include <glibmmconfig.h>
-#include <glib.h> //For the GIOChannel enum values.
+#include <glib.h> //For the GIOCondition enum values.
 #include <glibmm/error.h>
 #include <glibmm/refptr.h>
 #include <glibmm/ustring.h>
@@ -40,13 +40,14 @@ _WRAP_ENUM(IOStatus, GIOStatus, NO_GTYPE, s#^EOF$#ENDOFFILE#)
 _WRAP_ENUM(IOFlags, GIOFlags, NO_GTYPE)
 
 
-/** A bitwise combination representing an I/O condition to watch for on an
+/** @enum IOCondition
+ * A bitwise combination representing an I/O condition to watch for on an
  * event source.
  * The flags correspond to those used by the <tt>%poll()</tt> system call
  * on UNIX (see <tt>man 2 poll</tt>).  To test for individual flags, do
  * something like this:
  * @code
- * if((condition & Glib::IO_OUT) != 0)
+ * if ((condition & Glib::IOCondition::OUT) == Glib::IOCondition::OUT)
  *   do_some_output();
  * @endcode
  */