change to .cef.txt to avoid ruling global .txt files out

Author: bhapas

.editorconfig

@@ -232,5 +232,5 @@ indent_size = 3
 [*.{csv,sql}-spec]
 trim_trailing_whitespace = false
 
-[*.txt]
+[*.cef.txt]
 insert_final_newline = false

modules/ingest-common/src/test/java/org/elasticsearch/ingest/common/CefProcessorTests.java

@@ -44,21 +44,21 @@ public void testParse() throws IOException, URISyntaxException {
         List<String> headers;
         Map<String, String> extensions;
         {
-            message = readCefMessageFile("basic_cef_message.txt");
+            message = readCefMessageFile("basic_message.cef.txt");
             headers = CefParser.parseHeaders(message);
             extensions = CefParser.parseExtensions(headers.removeLast());
             assertThat(headers, equalTo(List.of("CEF:0", "vendor", "product", "version", "class", "name", "severity")));
             assertThat(extensions, aMapWithSize(0));
         }
         {
-            message = readCefMessageFile("cef_message_with_extension.txt");
+            message = readCefMessageFile("message_with_extension.cef.txt");
             headers = CefParser.parseHeaders(message);
             extensions = CefParser.parseExtensions(headers.removeLast());
             assertThat(headers, equalTo(List.of("CEF:1", "vendor", "product", "version", "class", "name", "severity")));
             assertThat(extensions, equalTo(Map.of("someExtension", "someValue")));
         }
         {
-            message = readCefMessageFile("cef_message_with_escaped_pipe.txt");
+            message = readCefMessageFile("message_with_escaped_pipe.cef.txt");
             headers = CefParser.parseHeaders(message);
             extensions = CefParser.parseExtensions(headers.removeLast());
             assertThat(headers, equalTo(List.of("CEF:1", "vendor", "product|pipe", "version space", "class\\slash", "name", "severity")));