always use the libcurl-provided *printf() functions

tests/server/sockfilt.c

@@ -75,6 +75,9 @@
 #include <netdb.h>
 #endif
 
+#define ENABLE_CURLX_PRINTF
+/* make the curlx header define all printf() functions to use the curlx_*
+   versions instead */
 #include "curlx.h" /* from the private lib dir */
 #include "getpart.h"
 #include "inet_pton.h"

tests/server/sws.c

@@ -55,6 +55,9 @@
 #include <netdb.h>
 #endif
 
+#define ENABLE_CURLX_PRINTF
+/* make the curlx header define all printf() functions to use the curlx_*
+   versions instead */
 #include "curlx.h" /* from the private lib dir */
 #include "getpart.h"
 #include "util.h"

tests/server/util.c

@@ -48,6 +48,9 @@
 #include <netdb.h>
 #endif
 
+#define ENABLE_CURLX_PRINTF
+/* make the curlx header define all printf() functions to use the curlx_*
+   versions instead */
 #include "curlx.h" /* from the private lib dir */
 #include "getpart.h"
 #include "util.h"