Clarify confusing version message
When running, the following gets printed in quick succession on startup:
afl-fuzz++4.00c based on afl by Michal Zalewski and a large online community
[...]
[+] NOTE: This is v3.x which changes defaults and behaviours - see README.md
Don't assert that this is v3, just that v3+ changes defaults and
behaviours.
diff --git a/src/afl-fuzz.c b/src/afl-fuzz.c
index d7708fd..4e7679d 100644
--- a/src/afl-fuzz.c
+++ b/src/afl-fuzz.c
@@ -1344,8 +1344,7 @@
"Eißfeldt, Andrea Fioraldi and Dominik Maier");
OKF("afl++ is open source, get it at "
"https://github.com/AFLplusplus/AFLplusplus");
- OKF("NOTE: This is v3.x which changes defaults and behaviours - see "
- "README.md");
+ OKF("NOTE: afl++ >= v3 has changed defaults and behaviours - see README.md");
#ifdef __linux__
if (afl->fsrv.nyx_mode) {
