dnsapi/tests: Write-strings warnings fix

[Andrew Talbot]

Changelog:
    dnsapi/tests: Write-strings warnings fix.

diff -urN a/dlls/dnsapi/tests/name.c b/dlls/dnsapi/tests/name.c
--- a/dlls/dnsapi/tests/name.c	2006-05-23 13:47:54.000000000 +0100
+++ b/dlls/dnsapi/tests/name.c	2006-07-19 20:31:39.000000000 +0100
@@ -44,7 +44,7 @@
 
 static const struct
 {
-    LPSTR name;
+    LPCSTR name;
     DNS_NAME_FORMAT format;
     DNS_STATUS status;
 }