[gardening] Fix missing 'an' in CallingConventions

leegun · Nov 19, 2016 · 40a85e2 · 40a85e2
1 parent 6d8af41
commit 40a85e2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docs/CallingConvention.rst b/docs/CallingConvention.rst
@@ -278,7 +278,7 @@ considering here:
   This is optimal if the caller has responsibility for the value and
   doesn't need it after the call.  This is an extremely common
   situation; for example, it comes up whenever a call result is
-  immediately used an argument.  By giving the callee responsibility
+  immediately used as an argument.  By giving the callee responsibility
   for the value, this convention allows the callee to use the value at
   a later point without taking any extra action to keep it alive.