Fix typo in comment.

diff --git a/src/libpspp/sparse-array.c b/src/libpspp/sparse-array.c
index eba5d8327a2f0b8e9202c8e3244d8b90ac17cd89..7af219bcb080cd0a75b8b6bf9f823d2f397618a1 100644 (file)
--- a/src/libpspp/sparse-array.c
+++ b/src/libpspp/sparse-array.c
@@ -88,7 +88,7 @@ struct sparse_array
 /* An internal node in the radix tree. */
 struct internal_node
   {
-    int count;                  /* Number of nonnul children. */
+    int count;                  /* Number of nonnull children. */
     union pointer down[PTRS_PER_LEVEL]; /* Children. */
   };