Follow up from SOLR-6994 work to fix test
diff --git a/solr/core/src/test/org/apache/solr/cli/SimplePostToolTest.java b/solr/core/src/test/org/apache/solr/cli/SimplePostToolTest.java
index 2f15705..fdd5814 100644
--- a/solr/core/src/test/org/apache/solr/cli/SimplePostToolTest.java
+++ b/solr/core/src/test/org/apache/solr/cli/SimplePostToolTest.java
@@ -165,7 +165,7 @@
     assertEquals("application/msword", SimplePostTool.guessType(f));
     f = new File("foobar");
     assertEquals("application/octet-stream", SimplePostTool.guessType(f));
-    f = new File("foo.jsonl");
+    f = new File("foo.json");
     assertEquals("application/json", SimplePostTool.guessType(f));
   }