tests: Fix the line endings for the SASL alt-auth tests

- Change data and protocol sections to CRLF line endings.

Prior to this change the tests would fail or hang, which is because
certain sections such as protocol require CRLF line endings.

Follow-up to a9499ff from today which added the tests.

Ref: https://github.com/curl/curl/pull/3790

tests/data/test892

@@ -19,13 +19,13 @@ REPLY AUTH +
 REPLY c2hhcmVkLW1haWxib3gAdXNlcgBzZWNyZXQ= +OK Login successful
 </servercmd>
 <data>
-From: me@somewhere
-To: fake@nowhere
-
-body
-
---
-  yours sincerely
+From: me@somewhere
+To: fake@nowhere
+
+body
+
+--
+  yours sincerely
 </data>
 </reply>
 
@@ -47,11 +47,11 @@ pop3://%HOSTIP:%POP3PORT/892 -u user:secret --sasl-authzid shared-mailbox
 # Verify data after the test has been "shot"
 <verify>
 <protocol>
-CAPA
-AUTH PLAIN
-c2hhcmVkLW1haWxib3gAdXNlcgBzZWNyZXQ=
-RETR 892
-QUIT
+CAPA
+AUTH PLAIN
+c2hhcmVkLW1haWxib3gAdXNlcgBzZWNyZXQ=
+RETR 892
+QUIT
 </protocol>
 </verify>
 </testcase>