[tests] remove test_buffer output, except on error

src/test_buffer.c

@@ -21,12 +21,14 @@ static void run_buffer_path_simplify(buffer *psrc, buffer *pdest, const char *in
 		fflush(stderr);
 		abort();
 	} else {
+	      #if 0
 		fprintf(stdout,
 			"%s.%d: buffer_path_simplify('%s') succeeded: got '%s'\n",
 			__FILE__,
 			__LINE__,
 			in,
 			out);
+	      #endif
 
 		if (psrc != pdest) buffer_copy_buffer(psrc, pdest);
 		buffer_path_simplify(pdest, psrc);
@@ -69,7 +71,7 @@ static void test_buffer_path_simplify_with(buffer *psrc, buffer *pdest) {
 	run_buffer_path_simplify(psrc, pdest, CONST_STR_LEN("/.././xyz/.."), CONST_STR_LEN("/"));
 }
 
-static void test_buffer_path_simplify() {
+static void test_buffer_path_simplify(void) {
 	buffer *psrc = buffer_init();
 	buffer *pdest = buffer_init();