Corrections for a/an in code comments and documentation
diff --git a/Modules/arraymodule.c b/Modules/arraymodule.c
index 6af75a4..f73c599 100644
--- a/Modules/arraymodule.c
+++ b/Modules/arraymodule.c
@@ -2090,7 +2090,7 @@
* that fits better. This may result in an array with narrower
* or wider elements.
*
- * For example, if a 32-bit machine pickles a L-code array of
+ * For example, if a 32-bit machine pickles an L-code array of
* unsigned longs, then the array will be unpickled by 64-bit
* machine as an I-code array of unsigned ints.
*