[glib] gtestutils: Fix a typo in the g_test_run() documentation

[Philip Withnall <pwithnall src gnome org>]

commit 123bd7aecf29598a8a04d55998bf8ec778fc6dd7
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Fri Jan 16 09:12:53 2015 +0000

    gtestutils: Fix a typo in the g_test_run() documentation

 glib/gtestutils.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/glib/gtestutils.c b/glib/gtestutils.c
index e67078d..ada924b 100644
--- a/glib/gtestutils.c
+++ b/glib/gtestutils.c
@@ -1518,7 +1518,7 @@ g_test_run (void)
  * after that the memory is released.
  *
  * Splitting up a test run into fixture setup, test function and
- * fixture teardown is most usful if the same fixture is used for
+ * fixture teardown is most useful if the same fixture is used for
  * multiple tests. In this cases, g_test_create_case() will be
  * called with the same fixture, but varying @test_name and
  * @data_test arguments.