Fix typos in comments.
diff --git a/src/mesa/glapi/glapi.c b/src/mesa/glapi/glapi.c
index ecdf530..6d35c03 100644
--- a/src/mesa/glapi/glapi.c
+++ b/src/mesa/glapi/glapi.c
@@ -159,7 +159,7 @@
* It is possible for the original thread to be setting it at the same instant
* a new thread, perhaps running on a different processor, is clearing it.
* Because of that, \c ThreadSafe, which can only ever be changed to
- * \c GL_FALSE, is used to determin whether or not the application is
+ * \c GL_TRUE, is used to determine whether or not the application is
* multithreaded.
*/
/*@{*/