Fix and document yangfuzz for libyang2.
diff --git a/tests/fuzz/yangfuzz.c b/tests/fuzz/yangfuzz.c
index 52940b3..06d6076 100644
--- a/tests/fuzz/yangfuzz.c
+++ b/tests/fuzz/yangfuzz.c
@@ -4,23 +4,24 @@
 #include "libyang.h"
 
 int main(int argc, char **argv) {
-
-    if (argc != 2) {
-        fprintf(stderr, "invalid usage\n");
-        exit(EXIT_FAILURE);
-    }
+	if (argc != 2) {
+		fprintf(stderr, "invalid usage\n");
+		exit(EXIT_FAILURE);
+	}
 
 
-    struct ly_ctx *ctx = NULL;
+	struct ly_ctx *ctx = NULL;
 	LY_ERR err;
-    while (__AFL_LOOP(100)) {
+	while (__AFL_LOOP(100)) {
 		err = ly_ctx_new(NULL, 0, &ctx);
 		if (err != LY_SUCCESS) {
 			fprintf(stderr, "Failed to create context\n");
 			exit(EXIT_FAILURE);
 		}
 
-        lys_parse_path(ctx, argv[1], LYS_IN_YANG);
-    	ly_ctx_destroy(ctx, NULL);
-    }
+		lys_parse_path(ctx, argv[1], LYS_IN_YANG);
+		ly_ctx_destroy(ctx, NULL);
+	}
+
+	return 0;
 }