test1404, 1547: replace `&` char in comment and name for XML-friendliness

Closes #19497
diff --git a/tests/data/test1404 b/tests/data/test1404
index 1cf0c67..e40c775 100644
--- a/tests/data/test1404
+++ b/tests/data/test1404
@@ -31,7 +31,7 @@
 http
 </server>
 <name>
---libcurl plus -F with 3 files, one with explicit type & encoder
+--libcurl plus -F with 3 files, one with explicit type and encoder
 </name>
 <setenv>
 SSL_CERT_FILE
diff --git a/tests/data/test1547 b/tests/data/test1547
index 7e1625a..7984038 100644
--- a/tests/data/test1547
+++ b/tests/data/test1547
@@ -1,5 +1,5 @@
 <testcase>
-# Based on test100 & test101
+# Based on test100 and test101
 <info>
 <keywords>
 FTP