[glib] gobject: Fix a typo in the G_VALUE_LCOPY documentation

[Philip Withnall <pwithnall src gnome org>]

commit 9870de442f6487a152ef736018c9abcb1dfc67ca
Author: Philip Withnall <withnall endlessm com>
Date:   Mon May 7 20:43:59 2018 +0100

    gobject: Fix a typo in the G_VALUE_LCOPY documentation
    
    Signed-off-by: Philip Withnall <withnall endlessm com>
    Reviewed-by: nobody

 gobject/gvaluecollector.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gobject/gvaluecollector.h b/gobject/gvaluecollector.h
index 13b6f8f26..d083084f1 100644
--- a/gobject/gvaluecollector.h
+++ b/gobject/gvaluecollector.h
@@ -201,7 +201,7 @@ G_STMT_START {                                                                            
  \
  * @flags: flags which are passed on to the lcopy_value() function of
  *  the #GTypeValueTable of @value.
  * @__error: a #gchar** variable that will be modified to hold a g_new()
- *  allocated error messages if something fails
+ *  allocated error message if something fails
  *
  * Stores a value’s value into one or more argument locations from a va_list.
  * This is the inverse of G_VALUE_COLLECT().