[glibmm] Regenerate docs.xml files.

[Murray Cumming <murrayc src gnome org>]

commit 7e9ddc40a225b11dd046304307b6632bca04110e
Author: Murray Cumming <murrayc murrayc com>
Date:   Mon Mar 28 11:58:15 2016 +0200

    Regenerate docs.xml files.

 gio/src/gio_docs.xml   |    2 +-
 glib/src/glib_docs.xml |    9 +++++----
 2 files changed, 6 insertions(+), 5 deletions(-)
---
diff --git a/gio/src/gio_docs.xml b/gio/src/gio_docs.xml
index b7bad57..a575ef9 100644
--- a/gio/src/gio_docs.xml
+++ b/gio/src/gio_docs.xml
@@ -7263,7 +7263,7 @@ Since: 2.28
 </parameter>
 </parameters>
 <return> a %NULL-terminated array of the names of the
-actions in the groupb
+actions in the group
 
 </return>
 </function>
diff --git a/glib/src/glib_docs.xml b/glib/src/glib_docs.xml
index b785ad3..3692d2d 100644
--- a/glib/src/glib_docs.xml
+++ b/glib/src/glib_docs.xml
@@ -899,7 +899,8 @@ This level is also used for messages produced by g_assert().
 </parameter_description>
 </parameter>
 <parameter name="G_LOG_LEVEL_CRITICAL">
-<parameter_description> log level for critical messages, see g_critical().
+<parameter_description> log level for critical warning messages, see
+g_critical().
 This level is also used for messages produced by g_return_if_fail()
 and g_return_val_if_fail().
 </parameter_description>
@@ -11934,7 +11935,7 @@ Since: 2.8
 
 <function name="g_clear_error">
 <description>
-If @err is %NULL, does nothing. If @err is non-%NULL,
+If @err or * err is %NULL, does nothing. Otherwise,
 calls g_error_free() on * err and sets * err to %NULL.
 
 </description>
@@ -18560,8 +18561,8 @@ in the
 [XDG Base Directory Specification](http://www.freedesktop.org/Standards/basedir-spec).
 This is the directory
 specified in the `XDG_RUNTIME_DIR` environment variable.
-In the case that this variable is not set, GLib will issue a warning
-message to stderr and return the value of g_get_user_cache_dir().
+In the case that this variable is not set, we return the value of
+g_get_user_cache_dir(), after verifying that it exists.
 
 On Windows this is the folder to use for local (as opposed to
 roaming) application data. See documentation for