Fix typos in parser comments

Signed-off-by: Jan Pokorný <jpokorny@redhat.com>
diff --git a/parser.c b/parser.c
index 192eaed..28b0d80 100644
--- a/parser.c
+++ b/parser.c
@@ -7515,7 +7515,7 @@
     NEXT;
 
     /*
-     * Predefined entites override any extra definition
+     * Predefined entities override any extra definition
      */
     if ((ctxt->options & XML_PARSE_OLDSAX) == 0) {
         ent = xmlGetPredefinedEntity(name);
@@ -7524,7 +7524,7 @@
     }
 
     /*
-     * Increate the number of entity references parsed
+     * Increase the number of entity references parsed
      */
     ctxt->nbentities++;