[Ada] Fix typo in comment about unit families

gcc/ada/

	* sem_util.adb (Is_Child_Or_Sibling): Fix typo in comment.

diff --git a/gcc/ada/sem_util.adb b/gcc/ada/sem_util.adb
index bf3d6c0..df06399 100644 (file)
--- a/gcc/ada/sem_util.adb
+++ b/gcc/ada/sem_util.adb
@@ -16286,7 +16286,7 @@ package body Sem_Util is
          end if;
 
       --  The packages may come from the same package chain or from entirely
-      --  different hierarcies. To determine this, climb the scope stack until
+      --  different hierarchies. To determine this, climb the scope stack until
       --  a common root is found.
 
       --        (root)      (root 1)  (root 2)